The Step-by-Step Guide to Painting a Car

AP-7541 DTM Primer uses a 4:1:1 ratio for high build (4 parts primer, 1 part hardener, 1 part reducer). OR 4:1:2 for no-sand sealer (4 parts primer, 1 part hardener, 2 parts reducer).

Most colors require 2-4 coats. Lighter colors and metallics may need more. Apply medium wet coats (0.8-1.2 mil / 20-30 microns each). Check color coverage between coats — the surface should look uniform with no primer showing through.

Allow each basecoat to flash dry (5-15 minutes at 68°F — the surface turns matte) before applying the next coat. Wait 45 minutes after the final basecoat before applying clearcoat. For clearcoat, wait 8-10 minutes between coats (fingerprint tacky).

Everything you need to paint your vehicle: Primer/Sealer (AP-7541g Gray Sealer), Basecoat (your selected color), Reducer (matched to your spray temperature), Activator/Hardener (for primer and clearcoat), Clearcoat (Alpha Automotive 2K clearcoat), Instructions, and access to tips, tricks & tutorials. 3-stage colors automatically include the correct undercoat basecoat. No guesswork — just choose your color and answer 4 questions.

2:1 — 2 parts HS Glamour Clear to 1 part activator. No reducer required. Hardener by temperature: AH-7103 (Fast, 55-70°F), AH-7105 (Medium, 70-85°F), AH-7107 (Slow, 85-95°F+). Pot life is 1 hour once mixed — only mix what you can spray in that window.

1:1 — equal parts basecoat to Alpha Urethane Reducer. Both standard and Low VOC formulations use the same 1:1 ratio. Choose your reducer speed based on temperature: AR-3060 (Fast, 55-70°F), AR-3070 (Medium, 70-85°F), AR-3080 (Slow, 85-95°F), AR-3090 (Extra Slow, 95°F+).

General reference: Motorcycle: 1-2 qt basecoat, 1 qt clearcoat. Small car (Miata, Civic): 3-4 qt basecoat, 1 gal clearcoat. Medium car (Camry, Mustang): 4-5 qt basecoat, 1-1.5 gal clearcoat. Truck/SUV: 6-8 qt basecoat, 2 gal clearcoat. Single panel: 1 pint-1 qt basecoat, 1 qt clearcoat. When in doubt, size UP — having extra is always better than running out mid-project. The Kit Builder provides exact quantities for your project.

Basecoat: HVLP 25-30 PSI at the cap, 1.3-1.4mm nozzle. Clearcoat: HVLP 30-35 PSI, 1.3-1.4mm nozzle. Primer (sealer): 1.3-1.4mm nozzle. Primer (high build): 1.7-2.0mm nozzle at 35-40 PSI. Hold the gun 6-8 inches from the surface and overlap each pass 50-75%. Keep the gun perpendicular — don't arc or fan.

Choose by the temperature you're painting in: AR-3060 (Fast): 55-70°F. AR-3070 (Medium): 70-85°F — most common. AR-3080 (Slow): 85-95°F. AR-3090 (Extra Slow): 95°F+. If paint is drying too fast (texture, dry spray), switch to a slower reducer. If it's running or sagging, go faster. The kit includes the correct reducer when you select your painting temperature.

2-Stage (beginner friendly): Primer/Sealer → Basecoat → Clearcoat. The basecoat IS the color. 3-Stage (advanced): Primer/Sealer → Undercoat Basecoat → Color Basecoat (Midcoat) → Clearcoat. A specific undercoat is required and dramatically affects the final color. For first-time painters, we strongly recommend a 2-stage color. If you order a 3-stage kit, the undercoat is included automatically.

The kit includes everything from primer to clearcoat. The only things you may need separately are prep supplies: masking tape & paper, body filler (if doing bodywork), sandpaper, scuff pads, wax & grease remover, and tack cloths. These are available as optional add-ons in the Kit Builder.

Full Color Change covers the entire exterior including door jambs, engine bay, trunk jambs — everything visible when doors are open. Exterior Panels Only covers just the outside panels, NOT door jambs or engine bay. Full Color Change requires more product and more masking work.

If the basecoat sits for more than 8 hours without clearcoat, you must scuff the surface with 600-800 grit sandpaper and ensure a matte finish before recoating or applying clearcoat. This ensures proper adhesion of the clearcoat layer.

Wait at least 12 hours for assembly, polishing, and recoating. For wet sanding and polishing, use P1200-P5000 grit in progressive steps, then compound and polish for a mirror finish. For recoating or flowcoat, sand with P600-P800.

Yes! Order Painted Samples first. They're $11.99 each (on sale from $19.99), with bundle discounts: Buy 3 get 10% off, Buy 6 get 20% off. You can even get a prepaid return label for $6.99 to return samples for store credit.

Minimum specs: 12+ CFM at 40 PSI, 60-gallon tank recommended (30-gallon bare minimum for panels only). Must sustain 40-50 PSI continuously while spraying. Install a moisture separator/water trap and drain the tank after every use.

Common causes: gun held too far from the surface, air pressure too low, paint too thick (not enough reducer), wrong reducer speed, or material not mixed well. Fix: let cure fully, wet sand with 1500-2000 grit, then compound and polish. Prevention: hold gun 6-8 inches from surface, use 26-29 PSI for HVLP, mix basecoat 1:1 with reducer, choose the right reducer speed for your temp.

Fisheyes are caused by surface contamination — silicone, wax, grease, oil, or polish residue. They cannot be buffed out. The affected area must be sanded back completely and repainted. Prevention: wipe the entire surface with wax and grease remover before every step, use clean filtered compressed air, and keep silicone-based products away from the spray area entirely.

Absolutely NOT. If a product is activated (mixed with hardener), it cannot go back into the original container — otherwise it will activate the entire product and it will harden and go bad. Only mix what you can spray within the pot life window.

Metal Up: Stripping to bare metal, full restoration from the ground up. Light Body Work: Vehicle is in good shape overall but needs spot priming in some areas. Scuff & Shoot: Vehicle is in mint condition — just scuff the existing finish and paint over it. Great for newer vehicles or budget projects.