Starbond Black Epoxy Putty Stick is a two-part, steel-reinforced epoxy putty designed for strong, discreet repairs on dark and black-colored surfaces. Unlike standard epoxy putty that cures to a conspicuous gray, this black epoxy putty blends cleanly with black plastics, rubber, dark wood, metal, and painted surfaces — leaving repairs that look intentional, not patched.
The application couldn’t be simpler: cut off the amount you need, knead the two parts together by hand until the color is uniform, and press it into place. The black putty holds its shape instantly — no sagging on vertical surfaces, no dripping on overheads — and gives you 6–8 minutes of working time to shape, smooth, and position before it begins to set. Once cured, it’s rock-hard: sand it, drill it, file it, tap it, or paint it.
Steel-reinforced and waterproof, this black epoxy putty is built for more than surface cosmetics — it rebuilds missing material, fills structural voids, and handles load-bearing repairs that softer fillers can’t. Bonds to metal, wood, plastic, ceramics, concrete, and composites
Black Epoxy Putty for Automotive Trim, Bumpers & Interior Plastic Repair
Automotive repair is where black epoxy putty earns its reputation. Standard gray epoxy putty leaves an obvious patch on black bumpers, trim panels, and interior plastics. Starbond’s black putty cures to a dark, matte finish that blends with factory plastic colors — no primer, no painting required for discreet fixes.
Common automotive applications:
- • Rebuilding cracked or broken bumper tabs and mounting points
- • Filling splits and stress cracks in interior trim panels
- • Reattaching or reinforcing broken clip housings
- • Repairing door panels, dash trim, and center console components
- • Sealing gaps and voids in exterior black rubber or plastic trim
The steel-reinforced formula means rebuilt tabs and clips hold under real stress — not just cosmetically, but structurally. This all-purpose repair stick stays put where standard fillers flex and fail.
Plumbing Repair Putty That Sets on Wet Surfaces — Pipes, Fittings & Fixtures
As a waterproof plumbing repair putty, Starbond Black Epoxy Putty Stick seals leaks, fills cracks, and rebuilds damaged pipe fittings — even in damp or wet conditions. The kneadable epoxy formula sets without shrinking, bonds to metal, PVC, and copper, and cures to a watertight seal that doesn’t crack or brittle over time.
Plumbing and pipe repair applications:
- Sealing pinhole leaks in copper, steel, and galvanized pipes
- Rebuilding cracked or damaged pipe fittings and elbows
- Filling voids around drain fixtures and penetrations
- Repairing PVC pipe cracks and splits in non-pressure applications
- Patching cracked porcelain or ceramic plumbing fixtures
The non-sag formula of this epoxy putty makes it ideal for overhead and vertical pipe repairs where liquid epoxy would run before curing.
How to Use Black Epoxy Putty — Cut, Knead, Apply
Starbond Black Epoxy Putty Stick is one of the easiest epoxy putty products to use. No mixing tools, no syringes, no measuring. Here’s the full process:
Step 1: Cut
Cut the amount of black putty you need from the stick using a knife or scissors. Start small — you can always add more.
Step 2: Knead
Knead the two-part kneadable epoxy together by hand for 1–2 minutes until the color is fully uniform with no streaks. Streaks indicate incomplete mixing and will result in a weaker cure. Work gloves are recommended.
Step 3: Apply
Press the mixed black epoxy putty firmly onto the clean, dry surface. Smooth and shape with wet fingers or a tool within the 6–8 minute working window. This hand-mixable filler holds its position immediately — no support needed on vertical or overhead surfaces.
Step 4: Cure & Finish
Allow to set undisturbed. Sandable and machinable in 1–6 hours depending on temperature. For best results, allow 24 hours before full load or stress.
