The Ultimate Guide to Finishing: Elevate Your Painting Skills with These Techniques

Engaging introduction

Finishing is where craftsmanship meets the eye. It is the difference between a wall that simply looks painted and a surface that looks flawlessly designed, durable, and refined. For painters across Romania - from the dynamic projects in Bucharest and Cluj-Napoca to heritage restorations in Iasi and commercial fit-outs in Timisoara - mastering finishing techniques is a career-defining skill. The right approach to preparation, application, and protection elevates outcomes, reduces rework, and builds your reputation with clients and employers.

This guide distills proven industry practices for achieving a premium finish on interior and exterior surfaces. Whether you are applying a waterborne varnish on hardwood floors, delivering a Level 5 wall finish in a luxury apartment, or spraying metal railings on a commercial site, you will find step-by-step methods, checklists, troubleshooting advice, and local context relevant to the Romanian market. You will also see examples of typical pay ranges in Romania, common employer types, and practical ways to plan your work to save time and money without compromising quality.

If you are targeting consistent, photo-ready results, fewer callbacks, and higher client satisfaction, the following sections provide a complete roadmap.

The finishing mindset: quality begins long before the first coat

Great finishes start before you open a paint can. Painters who consistently deliver top-tier work use a disciplined workflow:

1. Understand the substrate and its condition.
2. Plan the finishing system for durability, appearance, and climate.
3. Control site conditions for temperature, humidity, and dust.
4. Prepare surfaces to a defined standard.
5. Apply coatings using the correct tools, techniques, and film thickness.
6. Inspect between coats and correct defects proactively.
7. Protect the finished work until handover.

Adopting this mindset reduces defects like lap marks, orange peel, peeling, and premature wear. It also helps you quote more accurately and manage client expectations, especially in cities like Bucharest where premium interior finishes are common and clients expect showroom-level results.

Tools and materials that make or break the finish

Before diving into techniques, equip yourself with the right tools. Pros in Romania already use most of the following, but optimizing your kit streamlines work and boosts quality.

Essential surface prep tools

• Dust extraction sander or sanding pole with vacuum attachment
• Abrasives: 80-120 grit for shaping, 150-180 for smoothing, 220-320 for between-coat sanding on wood and trim
• LED raking light to reveal defects
• Moisture meter for wood, concrete, and plaster
• Filling knives, taping knives, and a hawk for skim coats
• Caulking gun and painter's caulk (acrylic for interiors, hybrid for exteriors)
• Mesh tape and paper tape for drywall joints
• Laser level and straightedges for flatness checks

Application tools

• High-quality brushes: synthetic bristle for water-based paints and varnishes; natural bristle for oil-based systems
• Rollers with correct nap: 5-10 mm for smooth walls, 12-18 mm for textured or rough surfaces
• Roller frames with sturdy extension poles to reduce fatigue and improve consistency
• Airless sprayer for high production on walls and ceilings; HVLP or air-assisted airless for fine trim and cabinetry
• Strainers, paint mixers, and clean buckets

Materials and consumables

• Substrate-specific primers: acrylic for general surfaces, alkyd for stain blocking, epoxy or zinc phosphate primers for metals, shellac for knot sealing
• High-quality interior and exterior topcoats: acrylic, polyurethane, alkyd, and specialty systems
• Varnishes: waterborne polyurethane, oil-based polyurethane, and 2K PU for maximum durability
• Masking tapes: delicate surface tape for fresh paint, standard painter's tape, and exterior-grade UV-resistant tape
• Drop cloths, plastic sheeting, and masking film

Pro tip: In Romania, brands commonly used include well-known European and local suppliers for primers, joint compounds, facade systems, and sealants. Stay familiar with technical data sheets, because small differences in recoat time, film build, and substrate limitations can impact your schedule, especially in fast-track projects common in Bucharest and Cluj-Napoca.

Planning the finish: system design and site conditions

Choose the right system for the job

• Drywall and plaster walls: Acrylic primer + acrylic topcoat; Level 5 finish where light is critical.
• Bathrooms and kitchens: Washable acrylic or latex enamel with mildew-resistant additives; moisture-tolerant primers.
• Facades: Silicone or silicate facade paints on mineral plasters for breathability; acrylic elastomerics for crack-bridging on stable substrates.
• Metal: Anti-corrosion primer (zinc phosphate or epoxy) + alkyd or 2K polyurethane topcoat.
• Wood: Sanded substrate + wood conditioner if needed + stain (optional) + waterborne or oil-based polyurethane varnish.
• Concrete floors: Epoxy primer + epoxy or polyaspartic topcoat with slip resistance where required.

Control temperature, humidity, and dew point

• Ideal application temperature: usually 10-30 C. Many waterborne coatings perform best at 18-25 C.
• Relative humidity: aim for 40-60% for interior finishing. High humidity slows drying and can cause sagging or dullness.
• Dew point rule: Substrate temperature should be at least 3 C above dew point to prevent condensation. This is critical on exteriors in the cool mornings typical of spring and autumn in Romania.

Sequencing and cleanliness

• Complete dusty tasks first: sanding, cutting, drilling. Clean thoroughly with vacuum and damp wiping before final coats.
• Paint top-down: ceilings, walls, then trim and doors. Flooring and skirting protection must be in place before ceiling and wall work.
• Ventilation: Ensure airflow without creating dust-laden drafts. Use filtered fans if necessary.

Surface preparation: the foundation of flawless walls

Preparation determines up to 80% of the final appearance. Here is a robust procedure for typical Romanian interiors with plasterboard or wet plaster.

Diagnosing and fixing common wall issues

• Cracks at joints: Reinforce with mesh or paper tape and joint compound.
• Nail pops and screw heads: Re-fasten framing if needed, set screws slightly below surface, and patch.
• Water staining: Find and fix leaks first; stain-blocking primer after drying.
• Efflorescence on masonry: Brush off salts, treat with a proprietary cleaner, allow to dry fully, and use a mineral-compatible primer.
• Glossy or polished surfaces: Scuff sand to dull sheen and improve adhesion; consider an adhesion-promoting primer.

Standard prep workflow for Level 4 and Level 5 finishes

• Clean: Remove dust, grease, and contaminants.
• Repair: Fill dents and holes with quality filler. For deeper repairs, build up in layers.
• Joint treatment: Tape and compound seams. Feather edges wide to make sanding minimal.
• Sand: Use 150-180 grit for walls after compounds cure.
• Prime: Apply acrylic primer evenly. Prime seals porosity and reveals defects.
• Inspect with raking light: Mark pinholes, ridges, and low spots.
• Spot fill and sand again: Targeted corrections prevent telegraphing under topcoats.
• For Level 5 finish: Apply a skim coat to the entire surface or a spray-applied surfacer, then sand to a uniform profile and reprime if needed.

Skim coating tips

• Mix consistency: Joint compound should be creamy, not runny. Use a mixing paddle for uniformity.
• Knife technique: Keep your blade clean and slightly flexed. Apply thin, even coats. Work in manageable sections.
• Drying time: Do not rush. Even in warm Cluj-Napoca summers, deeper areas take longer to dry fully.
• Sand smart: Attach a vacuum to reduce dust. Use a raking light to guide sanding and stop as soon as defects disappear to avoid over-thinning.

Paint selection: sheen, color, and film build matter

Sheen selection

• Ceilings: Flat or matte to hide defects.
• Walls: Matte or eggshell in living areas for elegance; satin in high-traffic zones.
• Trim and doors: Satin or semi-gloss for durability and cleaning.
• Bathrooms and kitchens: Satin or semi-gloss with a hard, washable surface.

Color considerations

• Lighter tones enhance space but demand better prep because they reveal flaws under sunlight.
• Accent walls and deep tints require more coats and careful cutting to avoid visible lines.
• In heritage areas of Iasi, respect architectural palettes where specified by clients or local guidelines.

Film thickness and coverage

• Follow the can's recommended coverage per liter. Many interior acrylics cover at roughly 10-14 m2 per liter per coat on smooth walls.
• Use a wet film thickness gauge if available for critical projects to confirm proper application.

Application mastery: brush, roller, and spray techniques

Cutting in

• Load the brush appropriately: dip a third of the bristle length and tap off excess.
• Start a few millimeters away from the line, then glide up and along the edge with a steady hand.
• Feather out brush marks into the wet area to avoid ridges.

Rolling walls for a uniform finish

• Pre-dampen roller covers for water-based paints to improve pickup.
• Work in 1-2 m wide sections. Apply paint in a W pattern and fill in, keeping a wet edge.
• Back-roll lightly in one direction to even out texture. Do not overwork.
• Avoid lap marks by maintaining a consistent pace and avoiding partial drying at edges.

Spray application

• Airless for production: common tip sizes are 415 or 517 for walls and ceilings. Adjust pressure for proper atomization without excessive overspray.
• HVLP for fine work: ideal for doors, cabinetry, and furniture varnish.
• Mask thoroughly and control ventilation to manage overspray, especially in occupied spaces in Bucharest apartment refurbishments.
• Back-roll sprayed walls to match roller texture if a roller stipple is desired.

Common defects and fixes

• Orange peel: Reduce viscosity slightly or change to a finer tip; maintain proper distance and speed.
• Runs and sags: Apply thinner coats. Watch for heavy buildup near edges and corners.
• Lap marks: Keep a wet edge; plan wall sections logically so you can complete them without interruption.
• Flashing or burnishing: Use quality paints and consistent prep. Prime patched areas to unify porosity.

Achieving flawless walls: Level 5 technique in detail

Critical-light walls near large windows or along corridors in office fit-outs will expose every imperfection. A Level 5 finish is the gold standard.

When to specify Level 5

• Surfaces with raking light from windows or LED strips.
• High-end residential projects in Bucharest and Timisoara where clients expect near-perfect surfaces.
• Commercial corridors and lobbies with spotlights.

Steps for Level 5

1. Complete jointing to Level 4 standard with wide feathering.
2. Prime with a high-build acrylic primer-surfacer or spray a skim coat compound.
3. Skim coat the entire surface with compound or a spray-applied surfacer.
4. Sand with 180-220 grit using a raking light to guide. Keep the profile uniform.
5. Spot prime or full prime based on manufacturer guidance.
6. Apply two finish coats, maintaining a wet edge and consistent film build.

Pro tips

• Use a wide knife (30-45 cm) for skim coats to minimize lines.
• Plan your lighting so you can see imperfections before painting, not after.
• Avoid glossy finishes on critical-light walls; choose high-quality matte with strong burnish resistance.

Varnishing wood: depth, durability, and feel

Wood finishing is both science and art. The right varnish system elevates floors, stairs, doors, and furniture.

Selecting varnish

• Waterborne polyurethane: Fast-drying, low odor, non-yellowing. Ideal for interiors, especially in occupied homes.
• Oil-based polyurethane: Warm tone and high durability but longer drying and potential yellowing.
• 2K polyurethane: Exceptional durability and chemical resistance for commercial areas and restaurants.

Surface preparation for wood

• Moisture: Target 8-12% moisture content indoors. High humidity on the Black Sea coast or in damp basements demands careful conditioning.
• Sanding sequence: 120 to flatten, 150 to smooth, 180-220 for final pass. Always sand with the grain.
• Dust control: Vacuum thoroughly and use a tack cloth before coating.
• Stain compatibility: If staining, test on offcuts to confirm color and finish system compatibility.

Application workflow

1. Seal: Apply first coat of varnish or a dedicated sanding sealer. Allow the full recommended dry time.
2. De-nib: Lightly sand with 220-320 grit to remove dust nibs and raised grain. Vacuum and tack.
3. Build: Apply second coat, maintaining even film. Avoid over-brushing.
4. Final coat: Apply carefully in controlled conditions for flow and clarity. Use a high-quality brush or applicator.

Troubleshooting varnish defects

• Bubbles: Over-rolling or shaking the can causes bubbles. Allow varnish to rest after mixing; use slow, even strokes.
• Dust nibs: Control airflow, clean the room, and use tack cloths. Spot sand and recoat if needed.
• Brush marks: Use the right brush, maintain a wet edge, and consider a flow additive approved by the varnish manufacturer.
• Fisheyes: Caused by contamination (silicone or oil). Clean surfaces thoroughly and consider a barrier coat if contamination is suspected.

Metal finishing: adhesion and corrosion control

Railings, gates, and structural steel require systems that resist rust and weather.

Preparation is non-negotiable

• Remove rust by mechanical abrasion to a clean, sound substrate. For exterior metal in Timisoara, where weather shifts quickly, prime the same day.
• Degrease with appropriate cleaners. Residual oil sabotages adhesion.

Priming and topcoats

• Use a zinc phosphate or epoxy primer for corrosion resistance.
• Choose alkyd enamel for ease of use or 2K PU for maximum durability and color retention.
• Maintain recommended film build. Too thin compromises protection; too thick causes sags and slow curing.

Application tips

• Feather edges of old coatings.
• Pay attention to edges and welds, which corrode first. Use brush and roller to work paint into edges even if you spray the field areas.

Concrete and masonry: breathe, seal, and beautify

Moisture and alkalinity

• New concrete needs adequate curing time. A typical rule is 28 days minimum before coating. Test moisture when in doubt.
• Alkalinity can attack alkyd paints. Use alkali-resistant primers and prefer acrylics or mineral systems.

Efflorescence and stains

• Dry-brush efflorescence and treat with a compatible cleaner. Eliminate sources of moisture.
• Stubborn stains may require a stain-blocking primer or specialty cleaners.

Facade finishing in Romanian climates

• In Bucharest and Iasi, spring and autumn are ideal for facade painting due to moderate temperatures.
• Avoid painting in direct sun or when rain is forecast within the coating's cure window.
• Consider silicone or silicate facade paints on mineral plasters for breathability and self-cleaning properties.

Decorative finishes that command premium rates

Clients in high-end residential and boutique commercial spaces are increasingly requesting special finishes that justify higher fees.

Popular options

• Venetian plaster and lime-based finishes for a natural, breathable aesthetic.
• Metallic glazes and pearlescent effects for feature walls.
• Microcement systems for bathrooms and kitchens, providing a monolithic, seamless look.
• Woodgraining and marbling for restoration work in historic parts of Iasi and Cluj-Napoca.

Keys to success

• Mock-ups: Always produce a sample board for client approval.
• Substrate preparation: Decorative systems magnify substrate defects. Invest time upfront.
• System compatibility: Follow the full system from a single manufacturer whenever possible to avoid warranty gaps.

Estimating and costing: avoid surprises

Pricing accuracy protects your margin and builds trust.

Material takeoff example

• Wall area: Suppose you have 120 m2 of interior walls.
• Paint coverage: 12 m2 per liter per coat.
• Coats: 2 finish coats + 1 primer = 3 coats total.
• Loss factor: 15% for roller and tray systems.
• Calculation: 120 m2 x 3 coats = 360 m2 of coverage required. At 12 m2/L, that is 30 liters. Add 15% for loss: about 34.5 liters in total. Round to 35 liters.

Labor planning

• Production rates vary by finish level and surface:
  • Standard repaint: 10-14 m2 per hour for roll and cut on walls.
  • Level 5 finish: 4-7 m2 per hour including skim, sand, and recoat.
  • Airless spray walls and ceilings: 60-120 m2 per hour for application only, plus masking and back-rolling.

Typical Romanian rates and salaries (illustrative ranges)

• Day rates for painters: roughly 200-450 RON per day (about 40-90 EUR), depending on skill and city.
• Per square meter rates:
  • Interior wall painting, standard: 12-25 RON/m2 (2.5-5 EUR/m2)
  • Skim coating to Level 5: 25-45 RON/m2 (5-9 EUR/m2)
  • Decorative finishes: 60-120 RON/m2 (12-24 EUR/m2), higher for complex systems
  • Wood varnishing: 30-70 RON/m2 (6-14 EUR/m2)
• Monthly salaries:
  • Entry-level painter: 2,800-4,000 RON net (560-800 EUR)
  • Experienced finisher or team lead: 4,500-7,500 RON net (900-1,500 EUR)
  • Specialist applicators for decorative or industrial coatings can exceed 8,000 RON net (1,600+ EUR) on busy projects in Bucharest or Cluj-Napoca.

Note: These are typical ranges as seen in the market; actual pay depends on employer type, project complexity, certifications, and city. In Bucharest, pay tends to be at the higher end; in Iasi, rates may be slightly lower but are rising with demand.

Employers and career paths in Romania

Typical employers

• General contractors delivering residential and commercial projects.
• Fit-out specialists for offices and retail, active in Bucharest and Cluj-Napoca.
• Property developers with in-house finishing teams.
• Facility management companies handling maintenance repaints for office parks and residential complexes.
• Restoration firms focusing on heritage buildings in cities like Iasi and Timisoara.
• Industrial coating contractors for factories, logistics hubs, and infrastructure.

Roles and progression

• Painter's helper to junior painter: learn preparation, masking, and basic application.
• Skilled painter: independently handles prep, rolling, cutting, and minor spray work.
• Finisher: specializes in Level 5 walls, varnish, and high-visibility areas.
• Decorative specialist: faux finishes, microcement, and specialist plasters.
• Site supervisor or foreman: manages teams, quality control, and scheduling.

Upskilling with spraying techniques, decorative systems, and advanced prep methods increases your value to employers and clients in every major city.

Quality control and defect prevention

Inspection checklists between coats

• Is the surface clean and dust-free?
• Is the primer even, with no patchy suction?
• Are joints and patches invisible under raking light?
• Is the film thickness adequate according to the data sheet?
• Are edges, corners, and cut-ins neat and consistent?

Common root causes and solutions

• Uneven sheen: Often due to unsealed patches. Solution: spot prime and ensure uniform primer coverage.
• Peeling: Inadequate surface prep or coating incompatibility. Solution: remove loose material, sand, prime correctly.
• Blistering: Moisture entrapment or painting over a hot surface. Solution: respect dew point and substrate temperature; allow substrates to dry.
• Alligatoring or crazing: Brittle old coatings or incompatible layers. Solution: sand back and use a compatible primer and topcoat system.

Safety, health, and environmental good practice

• PPE: Safety glasses, gloves, and respirators suitable for the product. Use P2 or P3 filters for sanding dust.
• Ventilation: Ensure adequate airflow, especially when spraying or using solvent-borne products.
• Ladder and scaffold safety: Maintain 3-point contact, secure platforms, and avoid overreach.
• Waste handling: Follow local rules for disposing of solvent waste and paint sludge. Do not pour leftover paint into drains.
• Low-VOC products: Prefer low-VOC, waterborne coatings where performance allows, particularly in occupied apartments and offices.

Exterior finishing: planning around Romanian weather

• Seasonal timing: Best windows are late spring and early autumn. Summer heat can cause too-fast surface drying; winter cold slows curing and risks dew.
• Substrate moisture: Test before coating, especially after rain or washing facades.
• Sun and wind: Paint shaded areas first or work around the building with the sun. Wind accelerates drying and can cause overspray to drift.
• Expansion joints and cracks: Use flexible, exterior-grade sealants and respect joint details.

Productivity boosters without compromising quality

• Standardize your setups: Keep dedicated kits for primer, topcoat, and varnish to avoid contamination.
• Batch your colors: Mix and strain enough material for a full area to prevent shade variation.
• Work top-down and left-to-right consistently so you never lose your wet edge.
• Pre-cut and pre-mask: Especially effective for high-rise apartments in Bucharest where setup time dominates.
• Use checklists and sign-offs after each stage to catch issues early.

Practical, actionable advice for real projects

Residential repaint in Cluj-Napoca

• Scope: Refresh a 70 m2 apartment with matte walls and satin trim.
• Actions:
  1. Protect floors and furnishings thoroughly.
  2. Spot repair cracks with mesh tape where necessary.
  3. Prime patches to avoid flashing.
  4. Apply two wall coats with 5-10 mm roller nap; cut-in one wall at a time to maintain wet edge.
  5. De-nib trim between coats for a glassy satin finish.
• Tips: Communicate drying times with the client; in winter, plan extra time due to lower indoor humidity and ventilation limits.

Office fit-out in Bucharest with critical lighting

• Scope: Level 5 walls and ceilings, satin enamel doors, and frames.
• Actions:
  1. Agree on Level 5 standard and produce a sample area.
  2. Skim entire surfaces, sand with vacuum extraction, and prime with a high-build surfacer.
  3. Spray apply finish in controlled zones; back-roll where texture is desired.
  4. Perform raking-light inspections before final coat.
  5. Install protection and signage to keep finished areas pristine until handover.
• Tips: Coordinate with MEP and ceiling installers to avoid late penetrations that damage the finish.

Exterior facade refresh in Timisoara

• Scope: Recoat mineral plaster facade with silicone paint.
• Actions:
  1. Wash, treat algae if present, and repair cracks.
  2. Prime with system-compatible facade primer.
  3. Apply two uniform coats by airless spray and back-roll for even texture.
  4. Monitor dew point and avoid painting late afternoon if temperatures drop quickly.
• Tips: Scaffold sheeting helps manage wind and overspray.

Heritage interior in Iasi

• Scope: Restore plaster and apply breathable limewash.
• Actions:
  1. Stabilize loose plaster; use compatible mineral repair compounds.
  2. Allow thorough drying; test substrate pH.
  3. Apply mineral primer if required; finish with limewash in multiple thin coats.
• Tips: Expect color and sheen variations with limewash. Educate the client on the authentic look and maintenance.

Troubleshooting quick reference

• Lap marks on walls: Work smaller sections, keep a wet edge, and avoid painting in hot, dry drafts.
• Roller stipple too heavy: Use a shorter nap, thin slightly within spec, and back-roll lightly.
• Color mismatch: Box all cans together and stir thoroughly. Keep a retained sample for reference.
• Stain bleed-through: Use a solvent-based or shellac primer on nicotine, marker, or severe water stains.
• Peeling on bathrooms: Improve ventilation, use moisture-tolerant products, and seal with a primer designed for high humidity.

Hand-over and maintenance

• Final inspection under target lighting confirms color, sheen, and uniformity.
• Provide the client with touch-up paint labeled by room and date.
• Educate on cleaning: soft sponge, mild detergent, no aggressive scrubbing on matte finishes.
• Recommend maintenance cycles: interiors every 3-7 years depending on traffic; exteriors every 5-10 years based on exposure.

Conclusion: make finishing your signature

Finishing is the painter's signature. Mastering preparation, controlling site conditions, choosing the right system, and applying with precision separates competent work from outstanding craftsmanship. In Romania's busy construction markets - Bucharest's upscale apartments, Cluj-Napoca's tech offices, Timisoara's commercial centers, and Iasi's historic buildings - clients reward professionals who deliver consistent, durable, and beautiful finishes.

If you are a painter or finishing specialist looking to step up your career, expand your skills, or connect with employers who value quality, partner with a recruiter who understands the trade. ELEC supports painters and finishing professionals across Europe and the Middle East with roles that match your expertise, from high-end residential to complex commercial and industrial projects. Reach out to ELEC to discuss current opportunities, salary expectations, and the training that makes you stand out on site.

FAQ: finishing techniques every painter in Romania should know

1) What is the fastest way to improve wall finish quality?

Focus on preparation and lighting. Prime early to reveal defects, use a raking light to mark imperfections, and allocate time for targeted patching and sanding. Many painters try to fix surface issues with an extra topcoat, but the biggest gains come from better prep and uniform priming.

2) Should I choose water-based or oil-based varnish for interior wood?

For most interior projects, waterborne polyurethane offers quick drying, low odor, and non-yellowing clarity. Oil-based polyurethane provides a warmer tone and excellent durability but dries more slowly and can yellow. If you need maximum wear resistance, a 2K polyurethane is a premium option, especially for commercial stairs or high-traffic floors.

3) How do I avoid lap marks on large living room walls?

Maintain a wet edge by working one full section at a time, keep the roller loaded, and always back-roll lightly in the same direction. Avoid stopping mid-wall. Control room temperature and airflow to prevent premature drying at the edges.

4) What tip size should I use for airless spraying interior walls?

Common starting points are 415 or 517 tips for wall paints, adjusted by product viscosity and desired film build. Always strain paint, check filters, and test on a sample area. For trim and doors, switch to a smaller fan and orifice, such as a 310, and lower pressure for a finer finish.

5) How do Romanian salaries for painters compare across cities?

In general, Bucharest offers the highest rates due to demand and project scale, followed by Cluj-Napoca and Timisoara. Iasi is competitive, especially for heritage and institutional work. Typical net monthly ranges run from about 2,800-4,000 RON for entry roles to 4,500-7,500 RON for experienced finishers, with specialists earning more on complex projects. Actual pay depends on the employer, scope, and your skill set.

6) Can I paint exterior facades in winter?

It is usually risky. Many products require temperatures above 5-10 C and stable conditions for several hours after application. If you must work in colder weather, use systems approved for low temperatures, monitor dew point closely, and adjust scheduling to paint during the warmest part of the day.

7) What is the best way to control dust when sanding?

Use a sander connected to a HEPA or fine dust extractor, seal off the work area with plastic, and vacuum surfaces before priming. Wipe down with a slightly damp microfiber cloth to remove fine particles. Better dust control equals fewer nibs and a smoother final finish.