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🛠️ Fix it like a pro — flexible, fast, flawless!
The TECHKO Silverhook Big Boy Plastic Flexi Filler 250ml is a premium two-component plastic filler designed for automotive and general repairs. It offers high elasticity and strong adhesion to a wide range of surfaces including plastics, metals, and wood. Corrosion and water resistant, it cures quickly to a sandable, paint-ready finish, making it ideal for durable, professional-grade repairs on car bumpers and exterior fixtures.












| ASIN | B007NVYCNU |
| Best Sellers Rank | 1,143 in Automotive ( See Top 100 in Automotive ) 15 in Fillers, Adhesives & Sealants |
| Box Contents | Applicator |
| Brand | SILVERHOOK |
| Brand Name | SILVERHOOK |
| Colour | Grey |
| Compatible Devices | Car |
| Compatible devices | Car |
| Connector Type | Component |
| Connector type | Component |
| Customer Reviews | 4.5 out of 5 stars 1,148 Reviews |
| Finish type | Plastic |
| Global Trade Identification Number | 05036029110227 |
| Item Type Name | Plastic Filler |
| Item Weight | 280 g |
| Manufacturer | Ware Motorama Ltd T/A Silverhook |
| Manufacturer Part Number | BIG31 |
| Model Number | BIG31 |
| Number of Items | 18 |
| Package Quantity | 1 |
| Power Plug Type | No Plug |
| Product Finish Type | Plastic |
| Product Warranty | None. |
| Smart Home Compatibility | Not Smart Home Compatible |
| Specific Uses For Product | Repair and fill gaps or holes on different surfaces |
| Specific uses for product | Repair and fill gaps or holes on different surfaces |
| Unit Count | 250.0 millilitre |
| Warranty Type | Limited |
M**S
Strong and great product , easy to work with
Great product , thanks
M**E
Strong Adhesion - Easy To Work With
Purchased June 2024 - 250ml £9.33 [Note: At time of writing webpage states both 250 & 280ml - 250ml was received - don't know if this "shrinkflation" or just a typo] We used this in very hot [for UK!] conditions and found it bonds extremely well even to painted surfaces, some applications required two-coats to fill in air-bubbles [probably user error]. Easy to sand and paint. Not much else to say - definitely use in a well-ventilated area Downside - could do with a better way of measuring the ratio of hardener to filler, it was a bit of "hope this is right". We did find it "going-off" quite quickly, although this might have been down to the temperature +24 deg. C. Recommended
S**.
Nice product
Works well hoes off quick and rubs down with wet n dry
S**N
Great product
Great product
P**N
Filler
Very pleased with item
T**R
Quick and easy to apply and sand to shape
Arrived promptly. Used to repair a large hole ripped in the front bumper (see photos). Applied using mesh and built up in layers. Cured in about an hour with warm air from fan heater. Sanded easily into shape using sanding block with a variety of paper grades starting coarse to get the correct form, and then a light grade before applying two coats of primer and the top coat (still needs a t-cut and lacquer but I am very pleased with the result).
K**X
Product good, delivery poor, service mixed
The product did not arrive within the timescales advised which was a longer date than I would have expected. The product when it did arrive did the job I expected and was easy to use. When I chased I was told I could have a replacement or money back. I opted for replacement which was said to have been sent. I do not believe this happened but fortunately a couple of days later the original did arrive. So in summary if I need this product again I will source from another supplier.
S**V
Plastic filler
Good quality and easy to use…
M**C
bonne qualité
Livraison avec Prime. Facile d'utilisation, durcissement rapide. Attention, procéder par petites quantité de mastic et ne pas mettre trop de durcisseur dans le mélange pour avoir le temps de travailler. Se ponce aisément.
M**L
Bonne concistance
Top très facile à appliquer👍
D**Y
bien
bon produit . dommage aucune explication en français pour utilisation
A**Z
Satisfait
J'ai reçu le paquet endommagé, le fournisseur fut très compréhensif et a vite répondu en trouvant solution. Pour le produit il est relativement facile d'application, convient au pare-choc et baguette de protection, une fois sec se ponce facilement. Au final le résultat est très bon.
H**M
Super
très facile d'utilisation
Trustpilot
3 weeks ago
1 month ago