---
product_id: 49451492
title: "Big Boy Plastic Flexi Filler"
brand: "silverhook"
price: "HK$125"
currency: HKD
in_stock: null
reviews_count: 8
category: "Silverhook"
url: https://www.desertcart.hk/products/49451492-big-boy-plastic-flexi-filler
store_origin: HK
region: Hong Kong
---

# Corrosion & water resistant High elasticity for flexible repairs 250ml high-capacity filler Big Boy Plastic Flexi Filler

**Brand:** silverhook
**Price:** HK$125
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Fix it like a pro, flex it like a boss!

## Quick Answers

- **What is this?** Big Boy Plastic Flexi Filler by silverhook
- **How much does it cost?** HK$125 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/49451492-big-boy-plastic-flexi-filler)

## Best For

- silverhook enthusiasts

## Why This Product

- Trusted silverhook brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Finish:** Quick curing and easy sanding lets you achieve professional-grade results in record time.
- • **Weatherproof Warrior:** Corrosion and water resistant formula ensures your repair stands strong through all conditions.
- • **Big Volume, Big Impact:** Generous 250ml size lets you tackle large repairs without constant refills.
- • **Flexibility That Lasts:** High elasticity means your repair moves with your car, preventing cracks and chips.
- • **Unmatched Surface Grip:** Adheres seamlessly to a wide range of automotive plastics and bumpers for durable fixes.

## Overview

Silverhook BIG31 Big Boy Plastic Flexi Filler is a 250ml automotive-grade plastic filler designed for repairing car bumpers and other plastic surfaces. It offers high elasticity, strong adhesion to diverse surfaces, and resistance to corrosion and water, enabling durable, flexible repairs. Quick curing and easy sanding make it ideal for professional-quality restoration with minimal downtime.

## Description

Silverhook BIG31 Big Boy Plastic Flexi Filler 250ml : desertcart.co.uk: Automotive

Review: 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).
Review: Good product - Nice product worked well for what I needed

## Features

- Causes damage to organs through prolonged or repeated exposure.
- Causes serious eye irritation.
- Causes skin irritation.
- Flammable liquid and vapour.
- Suspected of damaging fertility or the unborn child.
- Big Boy Flexible Plastic for Car Bumpers etc.
- Grips to Wide Range of Surfaces
- Corrosion & Water Resistant
- High Elasticity

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007NVYCNU |
| Best Sellers Rank | 2,074 in Automotive ( See Top 100 in Automotive ) 30 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 1,114 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 |
| Model Number | BIG31 |
| Number of Items | 18 |
| Package Quantity | 1 |
| Power Plug Type | No Plug |
| Product Finish Type | Plastic |
| Product Warranty | None. |
| 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(s) |
| Warranty Type | Limited |

## Product Details

- **Brand:** SILVERHOOK
- **Colour:** Grey
- **Compatible devices:** Car
- **Connector type:** Component
- **Specific uses for product:** Repair and fill gaps or holes on different surfaces

## Images

![Big Boy Plastic Flexi Filler - Image 1](https://m.media-amazon.com/images/I/81qBQ8H59qL.jpg)

## Questions & Answers

**Q: 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?**
A: 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.

**Q: Has anyone used this on upvc window frames**
A: I used it on some motorbike plastics and it’s done the job. Can’t hurt to give it a try.

**Q: 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 ??**
A: 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.

**Q: Will it be OK to fill dip in caravan roof, where water collects**
A: 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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quick and easy to apply and sand to shape
*by T***R on 28 December 2024*

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).

### ⭐⭐⭐⭐⭐ Good product
*by M***T on 12 June 2025*

Nice product worked well for what I needed

### ⭐⭐⭐⭐ Is it easy to use
*by A***S on 6 June 2025*

Works great easy to use good quality and good finish recommend

## Frequently Bought Together

- Silverhook BIG31 Big Boy Plastic Flexi Filler 250ml
- Silverhook BIGK1 Big Boy Glass Fibre Resin Repair Kit
- Silverhook BIG11 Body Filler , 250-Millilitre, gray

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-05*