KBS Coatings DiamondFinish Clear Coat - Tough Single Part Clear

In this review the KBS Coatings DiamondFinish Clear Coat is evaluated for hobbyists and automotive DIYers who need a simple, durable topcoat that can be applied directly to metal or paint. The single biggest reason to consider it is its single part formula that claims superior hardness and the ability to be applied direct to metal without additives, reducing prep steps for small projects like custom lures, trim pieces, and touch-up work. The review looks at real user feedback on durability, application ease, and how the finish holds up over time.

Key Features

• Direct to metal application: Allows coating bare metal without separate primer or mixing, saving time on small repairs and parts.
• Works over painted surfaces: Can be applied over cured paint to seal and add shine without additional compatibility coats for common hobby paints.
• Single part toughness: The formula is designed to be tougher and harder than many two part clears, providing a protective, abrasion-resistant surface.
• Self leveling finish: Dries smooth with minimal brush marks, making it suitable for small decorative pieces where a glossy, even look matters.
• Seals paints and metals: Creates a barrier against moisture and handling wear on both substrates, useful for items exposed to the elements.

Who It's For

DiamondFinish is best for hobbyists, custom painters, and light automotive or metal repairers who want a straightforward, durable clear coat that does not require mixing catalysts or additives. It suits projects like fishing lures, trim bits, metal signage, and small parts where a hard, glossy topcoat is desirable.

It is less appropriate for large structural automotive jobs where industrial two part systems and professional equipment are required, or for buyers who need guaranteed long-term flexibility in extreme cyclic conditions; some users reported cracks after months in heavy use environments.

Pros & Cons

Pros

• Direct application to metal and paint reduces prep and eliminates additive mixing for many projects.
• Many customers praise the finish and ease of application for small craft and lure work, producing a glossy, smooth surface.
• The single part formula is reported to dry into a hard, protective coating that resists light abrasion.
• Self leveling properties limit brush marks, cutting down on finishing time.

Cons

• Some users report inconsistent drying and curing times, with a few noting the finish can take weeks to fully cure.
• A minority experienced cracking after months of exposure, indicating it may not be ideal for every heavy-duty outdoor application.

Specifications

Product name	KBS Coatings DiamondFinish Clear Coat
Brand	KBS Coatings
Formula type	Single part clear coat
Application	Direct to metal and painted surfaces
Finish	Self leveling gloss, minimal brush marks
Primary benefits	Seals paint and metal; tough, hard finish

Our Verdict

The KBS DiamondFinish Clear Coat is a practical choice for hobbyists and DIYers who want a hard, glossy topcoat without the complexity of two part systems. It delivers a smooth, durable seal on metal and painted pieces and is good value for smaller projects; however, buyers requiring absolute long-term outdoor resilience for high-stress parts should test it on a sample first.

Frequently Asked Questions

Can I apply DiamondFinish directly to bare metal?
Yes, the formula is designed for direct to metal application without additives, though proper surface prep improves adhesion and longevity.

Is this a two part clear coat?
No, it is a single part clear coat that does not require mixing with a hardener, which simplifies application for small projects.

How long does it take to cure fully?
Dry and cure times vary; some users report weeks to reach full hardness, so allow extended cure time before heavy use.