Undercoating, I used regular tape, but pulled it off about 30 min after last spray. VERY IMPORTANT, otherwise you need wire tape.
I did not plug the bolt holes. I will just run a tap through them. I already have primer, por 15 on them so figured what was one more thing.
FWIW Another trick I learned was to use expanding foam earplugs.
Flash in 1 hour, it was dry to touch in about 20 min in the sunlight.
Here is stuff from Raptor:
U-POL'S RAPTOR Truck Bed Liner is a 2K paint designed for applying to the rear bed of pick up trucks. The urethane formulation dries rapidly and provides excellent UV protection. Users can control the pot life and drying times by choosing different speeds of U-POL hardeners.
Easy to use: SIMPLY FILL - SHAKE - SHOOT (see instructions below)
• Enough material to re-spray the largest truck beds
• No need to wax after application
• Abrasion and Stain Resistant
• Protects against rust, corrosion salt, damp & extreme temperatures
• Waterproof, flexible, helps deaden sound & vibrations
• Apply with shutz gun, roller or brush to obtain different textures
• Provides excellent adhesion
Mixing Ratio: 3:1 Truck Bed Liner Base: System 20 Standard Hardener
Specification:
Pot life at 68 degrees F / 20 degrees C : 60 minutes
Touch Dry at 68 degrees F / 20 degrees C : <1 hour subject to film build.
Light duty: 2-3 days at 68 degrees F / 20 degrees C.
Regular duty: 5-7 days at 68 degrees F / 20 degrees C.
Coverage: 125 square foot per US Gallon (mixed).
Preparation: U-POLs Truck Bed Liner can be applied to most original manufacturers finishes. The surface should be lightly scuffed, and free from dirt and rust. For best results bare metal should be treated with a suitable etch primer e.g. U-POL ACID#8 (UP0776/ UP0741)
