Custom Coat GM White 1.5 Gallon Urethane Spray-On Truck Bed Liner Kit

In this review of the Custom Coat GM White 1.5 Gallon urethane kit, the bottom line is straightforward: this kit is for DIYers and small fleets who want a durable, textured protective coating that is tintable and covers a large area per kit. Our review found the product shines because it bundles all mixing components plus a spray gun and regulator, making it possible to get professional-looking results at home without buying separate accessories. The kit's estimated coverage of 110 to 130 sq ft at 10 mils wet film thickness and the included hardener and tints are the biggest practical benefits.

Key Features

• Complete kit: Includes tintable liner base, standard hardener, basecoat color tints and an applicator gun with regulator so users have everything needed to mix and spray.
• Good coverage: Estimated 110 to 130 sq ft per 1.5 gallon kit at 10 mils wet film thickness lets users plan projects without frequent refills.
• Durable urethane formula: Heavy duty 2 part urethane provides impact and abrasion resistance while remaining flexible to resist chipping.
• Weather resistant: Heat, UV and waterproof properties protect coated surfaces from rust and harsh climatic conditions.
• Tintable: Comes with basecoat color tints and works with additional urethane tint concentrates to create single or multi-color finishes.
• Noise dampening: The textured coating helps reduce sounds and vibrations in truck beds and on equipment.

Who It's For

This kit is best for truck owners, small shop DIYers and commercial users who need a versatile bed liner that also works on bumpers, trailers, chassis and even non-skid home surfaces. The included spray gun and regulator make it practical for customers who already have or plan to use a modest air compressor setup.

It is less suited to someone seeking a simple brush-on solution or a single small touch-up quart; roller kits and different sizes are offered elsewhere. Extremely heavy industrial abuse may expose limits in longevity compared with specialized commercial-grade systems.

Pros & Cons

Pros

• Complete, tintable 1.5 gallon kit lets users mix, tint and spray without sourcing extra parts.
• Durable textured urethane that resists UV, heat and water while helping to prevent rust.
• Estimated 110 to 130 sq ft coverage provides good value for medium projects like full truck beds.
• Included applicator spray gun with regulator simplifies application for DIYers.

Cons

• Durability reports are mixed under extreme abuse, so very heavy use cases may require touch ups or a specialty commercial coating.
• Spray application requires some setup and an air compressor, so beginners will face a learning curve.

Specifications

Kit size	1.5 gallon (6 quart) kit
Included components	6 x 21 fl. oz. tintable base, 6 x 8 fl. oz. hardener, 6 x 3 fl. oz. basecoat tints, spray gun with regulator
Estimated coverage	110 to 130 sq ft @ 10 mils wet film thickness
Coating type	2 part urethane textured protective coating
Resistance properties	Heat resistant, UV resistant, waterproof, rust prevention
Common applications	Truck beds, vehicle exteriors, bumpers, trailers, garage floors, decks

Our Verdict

The Custom Coat GM White 1.5 Gallon kit is a well thought out DIY option for those who want a tintable, textured urethane liner with strong weather resistance and good coverage. It bundles the hardener, tints and a spray gun so users can achieve professional results at home; just be aware that spray application needs some equipment and technique. For most truck owners and small shops this kit represents solid value and flexible protection.

Frequently Asked Questions

How much area will the kit cover?
The manufacturer estimates 110 to 130 sq ft at 10 mils wet film thickness per 1.5 gallon kit.

Is the coating tintable?
Yes, the kit includes basecoat color tints and is compatible with urethane tint concentrates to create single or multi-color finishes.

Can it be applied with a small compressor?
Yes, customers report it works with smaller air compressor setups, but a proper regulator and technique are recommended for best results.