Custom Shop Black Urethane Spray-On Truck Bed Liner 1 Quart Kit

In this review of the Custom Shop Black Urethane Spray-On Truck Bed Liner 1 Quart Kit with Hardener, the reviewer found a practical, professional-feeling solution for DIY truck bed protection. It is best for vehicle owners who want a tough, flexible urethane coating they can apply with a spray gun or by hand. The single biggest reason to buy is the kit format: premeasured base bottles plus a 1L hardener and a purpose-built spray gun make it straightforward to mix, apply, and achieve a satin, abrasion-resistant finish that helps guard against rust and damage.

Key Features

• Two-part urethane system: The included hardener and base create a durable 2K protective coating that resists abrasion and most stains when cured.
• Complete kit: Four 711 ml bottles of base plus a 1L hardener provide enough material to recoat large truck beds without shopping for extra components.
• Bedliner spray gun included: The Custom Coat Bedliner Spray Gun has an adjustable nozzle and comes with a regulator and gauge to control spray pattern and pressure for cleaner application.
• Weather and corrosion protection: The coating shields surfaces from rust, salt, damp and extreme temperatures to extend the life of metal and aluminum beds.
• Waterproof and sound dampening: The flexible urethane helps seal surfaces and reduces noise and vibration while carrying cargo.
• Low VOC 2.1 formulation: Designed for use on truck beds, wood, concrete, fiberglass and most OEM finishes while offering UV protection.

Who It's For

This kit is aimed at pickup owners, restoration hobbyists and small shops that want a professional-looking, satin bedliner without sending the vehicle out. It suits people comfortable mixing a 3:1 ratio and using a spray gun, or those willing to roll or brush the coating where spray is impractical.

It is less appropriate for users who need a one-part product or who cannot manage the 2K mixing and pot life requirements, and those seeking a colored or heavily textured finish should consider tintable or specialized texture listings instead.

Pros & Cons

Pros

• Durable two-part urethane provides long-lasting abrasion and stain resistance.
• Kit includes measured base bottles, hardener, and a spray gun with regulator for controlled application.
• Waterproof and flexible finish helps prevent corrosion and reduces noise in the bed.
• Low VOC formula with UV protection suitable for multiple substrates.

Cons

• Requires correct 3:1 mixing and some spray skill to avoid runs or uneven texture.
• Some users report cracking or peeling in heavy-use scenarios, so surface prep and application technique are critical.

Specifications

Brand	Custom Shop
Type	2-part urethane bedliner kit
Contents	4 x 711 ml base bottles + 1 x 1 L hardener
Mixing Ratio	3:1 (Base:Hardener)
Included Tools	Custom Coat Bedliner Spray Gun with adjustable nozzle, regulator and gauge
VOC	2.1 VOC
Suitable Surfaces	Truck beds, wood, concrete, metal, aluminum, fiberglass, most OEM finishes

Our Verdict

The Custom Shop 1 Quart Kit with hardener is a strong DIY choice for those who want a durable, waterproof urethane bedliner with a satin professional look. It represents solid value when users follow the 3:1 mix, use the included spray gun, and prepare surfaces properly; those requirements are the main caveat but deliver a resilient finish that protects against corrosion and wear.

Frequently Asked Questions

How is the product applied?
The kit can be sprayed with the included bedliner gun after mixing, or it can be rolled or brushed on for small areas.

Will it protect against rust and salt?
Yes; the cured urethane is waterproof and formulated to help protect metal and aluminum from rust, corrosion and salt exposure.

Is the color adjustable?
This listing is for black base; tintable options are available in separate listings if color adjustment is needed.