---
product_id: 52604211
title: "Isoflex Special Primer 750ml"
brand: "thompson's"
price: "£39.00"
currency: GBP
in_stock: true
url: https://www.desertcart.co.uk/products/52604211-isoflex-special-primer-750ml
store_origin: GB
region: United Kingdom
---

# 11.1V power-ready 6m² coverage per litre Waterproof toughness Isoflex Special Primer 750ml

**Brand:** thompson's
**Price:** £39.00
**Availability:** ✅ In Stock

## Summary

> 🛠️ Prime like a pro, seal like a boss!

## Quick Answers

- **What is this?** Isoflex Special Primer 750ml by thompson's
- **How much does it cost?** £39.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/52604211-isoflex-special-primer-750ml)

## Best For

- thompson's enthusiasts

## Why This Product

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

## Key Features

- • **Matte Finish Elegance:** Delivers a sleek, matte finish that enhances the final look of your coating
- • **Waterproof Durability:** Creates a resilient, waterproof basecoat that stands the test of time
- • **Seamless Compatibility:** Perfectly primes for Isoflex Liquid Rubber, ensuring superior bonding and longevity
- • **Unmatched Surface Prep:** Prepares even the toughest surfaces flawlessly for flawless adhesion
- • **Optimal Coverage Efficiency:** Covers up to 6 square meters per litre, maximizing your project’s value

## Overview

Isoflex Special Primer 750ml by Sherwin-Williams is a tough, waterproof rubber-based matte primer designed for exterior use. It efficiently covers 6m² per litre and is engineered to prepare challenging surfaces for optimal adhesion of Isoflex Liquid Rubber coatings.

## Description

Isoflex Special Primer 750ml

## Features

- Tough, durable basecoat
- Use before applying Isoflex Liquid Rubber
- Ideal for preparing difficult surfaces

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Sherwin-Williams |
| Part Number | 073288 |
| Product Dimensions | 9.9 x 9.9 x 11.9 cm; 408.23 g |
| Item model number | 32997 |
| Size | 750 ml (Pack of 1) |
| Colour | Clear |
| Finish | Matte |
| Material | rubber |
| Power Source | ac |
| Voltage | 11.1 Volts |
| Item Package Quantity | 1 |
| Coverage | 6m2 per Litre |
| Usage | Exterior |
| Included Components | 1 Tin |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 408 g |

## Product Details

- **Brand:** Thompson's
- **Colour:** Clear
- **Finish type:** Matte
- **Size:** 750 ml (Pack of 1)
- **Item volume:** 750 Millilitres
- **Unit count:** 750.0 millilitre
- **Paint type:** Water-based
- **Specific uses for product:** Exterior
- **Surface recommendation:** Brick, Metal, Tiles
- **Indoor/Outdoor usage:** Outdoor

## Images

![Isoflex Special Primer 750ml - Image 1](https://m.media-amazon.com/images/I/61Ri1BhDaUL.jpg)

## Questions & Answers

**Q: can i send to belgium for a friend**
A: youll need to find a carrier who accepts explosive hazardous substances, and apropriate insurance. AFAIK it is not a restriced substance, just a flammable organic carcinogen.

**Q: How much does this tin cover?**
A: Hi, the tin should cover between 3.7m2 and 5.2m2

**Q: Can it be used on wood  and can it be applied to a vertical surface**
A: It can certainly be applied to a vertical surface I think it's good on pretty much anything

**Q: I need to waterproof an area around a glass skylight set in a metal frame will this product combined with your liquid rubber product do the job?**
A: I'm sorry to say, I have no idea, this is a question that you need to ask the makers of Isoflex. I'm going to use it for sealing a water tank on my model steam engine, which I am making. Sorry I couldn't be of much help. If you read some of the comments for Isoflex, there might be some help there.

## Frequently Bought Together

- Isoflex Special Primer 750ml
- Isoflex Liquid Rubber 750ml
- Faithfull Tar Brush Short Handle FAIBRTARSH

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**Shop now:** [https://www.desertcart.co.uk/products/52604211-isoflex-special-primer-750ml](https://www.desertcart.co.uk/products/52604211-isoflex-special-primer-750ml)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-03*