Tetrosyl Ultrasmart 2K Fibrofil Metal & Glass Fibre Car Body Filler - 250g 2pk x3
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Product Information
Full details
The Tetrosyl Ultrasmart 2K Fibrofil is designed for automotive enthusiasts and professionals who need a durable, glass-reinforced solution for filling holes and deep scratches in metal bodywork. It provides a robust, vibration-resistant finish that is ideal for structural repairs, though users must be careful to work quickly due to its relatively short 5-10 minute setting window.
All features
| Model Part Number | TETUSF025PK3 |
|---|---|
| Brand | Tetrosyl |
Extended Product Information
FAQs
Can I use this on plastic bumpers?
No, this product is specifically designed for metal surfaces and is not flexible enough for use on plastic bumpers.
How long should I wait before sanding?
You can begin sanding once the filler has set, which typically takes 5-10 minutes at 20 degrees Celsius.
What sandpaper grit should I start with?
Start with P80 grit paper to shape the filler, then proceed to finer grits for finishing.
Can I return unused mixed filler to the tin?
No, never return mixed filler to the container as it will contaminate the batch and cause it to harden in the tin.
Is this filler waterproof?
Once fully cured and covered with an appropriate primer and topcoat, the repair will be sealed against the elements.
Troubleshooting
The filler is not hardening
Check the mixing ratio; if insufficient hardener was added, the chemical reaction will not trigger. Also, ensure the ambient temperature is not too low.
Air pockets or pinholes appearing in the filler
Avoid aggressive mixing that traps air; use a folding motion when combining the putty with the hardener.
Filler pulling away from the metal surface
Ensure the surface was sanded to bare metal and properly degreased before application.
Pros and Cons
Pros
- Excellent adhesion to metal surfaces
- High structural integrity due to glass fibers
- Fast cure time increases workflow efficiency
- Compatible with a wide range of topcoats
Cons
- Short working time requires careful planning
- Precise mixing ratios are essential for performance
- Not suitable for use on plastic bumpers or flexible parts
Setup, Compatibility & Care
Before applying the putty, ensure the metal surface is completely free of rust, paint, and contaminants by using a degreaser. The mixing process is critical for proper curing: use a ratio of 98% putty to 2% hardener. When mixing, fold the components together carefully to avoid introducing air bubbles, which can cause pinholes in your final finish. Always work in a well-ventilated area and at an ambient temperature of approximately 20 degrees Celsius for optimal results. Store the paste in a cool, dry place and never return unused, mixed paste to the original tin as it will contaminate the remaining product.