My drivers side door is a bit bent in and rusty at the edge. If I tap it out level will this be any use to cover the rust and any gaps?

If you go to the trouble of "Tap it out level" you should also want to remove or deal with the rust, before you try to level the contours of the door skin with a filer. Whilst I assume your car's door is not plastic but metal, I would expect you could use this filer but it should be noted it's prepared for filling / bonding to plastic items, therefore it should be recommended that you use a filer designed for use with metal! I hope this info. is useful to you, and I wish you the best of luck / success with this project, and remember to treat / paint the door skin to preserve its future life / service! Regards, David Head.

Has anyone used this on upvc window frames

I used it on some motorbike plastics and it’s done the job. Can’t hurt to give it a try.

I have some deep gouges/scratches to fill on a dk grey bumper which I intended to treat afterwards with the forever black product..will that work ??

i used this product to fill a large dent in my back bumper, it seems the previous owner to my van had reversed into a post.it filled the gap very well and after hardening it was very easy to rub down with sandpaper.i then used black bumper paint spray and gave it 3 coats and it came up really well.if you have a dark grey bumper you might like to purchase a bumper paint spray the same colour.hope this helps.

Will it be OK to fill dip in caravan roof, where water collects

Id be guessing,but I think it probably would. I dont know if it would be water poof or not should there be joint in the roof covering at the area of the dip. Good luk

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TECHKO Silverhook Big Boy Plastic Flexi Filler 250ml

Product ID: 49451492

Details

Brand
SILVERHOOK
Colour
Grey
Compatible devices
Car
Connector type
Component
Specific uses for product
Repair and or

💧Corrosion & water resistant

🔗Strong adhesion to plastics & metals

🛠️250ml high-elastic filler

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€ 23.41

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Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Fix it like a pro — flexible, fast, flawless!

UNMATCHED GRIP - Exceptional adhesion bonds firmly to ABS, PVC, GRP, aluminum, and wood.
WEATHER WARRIOR - Corrosion and water resistant for durable exterior repairs.
FLEXIBLE MASTERY - High elasticity adapts perfectly to plastic bumpers and diverse surfaces.
EFFORTLESS FINISH - Easy sanding and paint-ready surface after just 1 hour of curing.
PRECISION APPLICATION - Two-component mix ensures smooth, quick hardening with professional results.

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.

Specifications

ASIN	B007NVYCNU
Best Sellers Rank	1,405 in Automotive ( See Top 100 in Automotive ) 20 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 1,141 Reviews
Finish type	Plastic
Global Trade Identification Number	05036029110227
Item Type Name	Plastic Filler
Item Weight	0.62 Pounds
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

Reviews

M**S

Strong and great product , easy to work with

Great product , thanks

24.04.2026

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

19.07.2024

A**S

Is it easy to use

Works great easy to use good quality and good finish recommend

6.06.2025

I**S

Mr P

Excelent

9.04.2026

S**V

Plastic filler

Good quality and easy to use…

11.05.2026

D**.

Good

Very good

6.05.2026

I**N

Tin half full

The contents are only about half of the tin - very deceptive. I ordered one tin and then had to buy another tin, for the job I needed to do The product itself is very good, but needing to pay twice was disappointing

2.04.2025

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).

28.12.2024

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.

10.08.2023

M**L

Bonne concistance

Top très facile à appliquer👍

21.11.2025

D**Y

bien

bon produit . dommage aucune explication en français pour utilisation

22.06.2023

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.

12.12.2019

H**M

Super

très facile d'utilisation

19.07.2023

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