---
product_id: 27102944
title: "SEM 39728 Super Flex - 1 Pint"
brand: "sem"
price: "₨2762"
currency: SCR
in_stock: true
reviews_count: 8
category: "Sem"
url: https://www.desertcart.sc/products/27102944-sem-39728-super-flex-1-pint
store_origin: SC
region: Seychelles
---

# Compatible with urethanes, enamels & lacquers Ideal for flexible automotive parts Enhances paint flexibility SEM 39728 Super Flex - 1 Pint

**Brand:** sem
**Price:** ₨2762
**Availability:** ✅ In Stock

## Summary

> 🎨 Keep your ride flawless with the ultimate flex additive!

## Quick Answers

- **What is this?** SEM 39728 Super Flex - 1 Pint by sem
- **How much does it cost?** ₨2762 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/27102944-sem-39728-super-flex-1-pint)

## Best For

- sem enthusiasts

## Why This Product

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

## Key Features

- • **Easy Integration:** Simply add to your paint mix for superior finish longevity
- • **Pro-Grade Durability:** Trusted by pros for over 40 years of reliable performance
- • **Versatile Compatibility:** Works seamlessly with urethanes, enamels, and lacquers
- • **Unmatched Flexibility Boost:** Prevents cracking & flaking on flexible surfaces
- • **Perfect for Flexible Substrates:** Ideal for bumpers, vinyl tops, and flexible plastics

## Overview

SEM 39728 Super Flex is a professional-grade paint additive designed to enhance the flexibility of urethanes, enamels, and lacquers. Perfect for automotive applications on flexible surfaces like bumpers and vinyl tops, it prevents paint flaking and cracking, ensuring a durable, smooth finish trusted by experts for decades.

## Description

Super SEM Flex is a paint additive that adds flexibility to urethanes, enamels and lacquers. Perfect for refinishing flexible substrates such as bumpers, vinyl convertible tops and flexible plastics.

Review: Works the best of them all. - The is the best flex agent foe auto painting. I've been doing auto paint and repair for over 40 years and I aways come back to SEM.
Review: good stuff - I painted a plastic automotive bumper and used this flex additive. This is a vital chemical needed to ensure your paint doesn't flake off your painted plastic parts. (You also need adhesion promoter as prep). I can't remmber if I added this to the clear coat as well... honestly I am not a professional. I whacked out my bumper on a part of a truck tire on the highway, and I decieded to try this out. It has lasted me 6 months and looks pretty dang good, using some materials and tools off of desertcart.

## Features

- New

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000K27IIU |
| Best Sellers Rank | #186,225 in Automotive ( See Top 100 in Automotive ) #99 in Automotive Body Paint |
| Brand | SEM |
| Color | Clear |
| Customer Reviews | 4.7 4.7 out of 5 stars (41) |
| Date First Available | October 10, 2006 |
| Exterior | Smooth |
| Global Trade Identification Number | 00646786397288 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Volume | 16 Fluid Ounces |
| Item Weight | 11.2 ounces |
| Item model number | 39728 |
| Manufacturer | SEM |
| Manufacturer Part Number | 39728 |
| Material | Vinyl |
| Model | 39728 |
| Package Information | Can |
| Product Dimensions | 5.9 x 2.7 x 2.6 inches |
| Special Feature | Flexible |
| Special Features | Flexible |
| UPC | 646786397288 |
| Unit Count | 1.0 Count |
| Viscosity | Moderate to high viscosity (cannot determine exact value without further information) |
| Viscosity Level | Medium to High |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** SEM
- **Color:** Clear
- **Item Form:** Liquid
- **Material:** Vinyl
- **Special Feature:** Flexible

## Images

![SEM 39728 Super Flex - 1 Pint - Image 1](https://m.media-amazon.com/images/I/41-wODn-GEL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works the best of them all.
*by B***5 on November 8, 2025*

The is the best flex agent foe auto painting. I've been doing auto paint and repair for over 40 years and I aways come back to SEM.

### ⭐⭐⭐⭐⭐ good stuff
*by P***N on February 19, 2024*

I painted a plastic automotive bumper and used this flex additive. This is a vital chemical needed to ensure your paint doesn't flake off your painted plastic parts. (You also need adhesion promoter as prep). I can't remmber if I added this to the clear coat as well... honestly I am not a professional. I whacked out my bumper on a part of a truck tire on the highway, and I decieded to try this out. It has lasted me 6 months and looks pretty dang good, using some materials and tools off of Amazon.

### ⭐⭐⭐⭐⭐ No problem with the product
*by S***. on July 7, 2024*

Used this product with Nason base coat and clear also with speedokote performed well

## Frequently Bought Together

- SEM 39728 Super Flex - 1 Pint
- SEM 39863 Plastic Adhesion Promoter Aerosol - 14.8 oz.
- SEM 39134 Flexible Primer Surfacer - 1 Quart

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**Shop now:** [https://www.desertcart.sc/products/27102944-sem-39728-super-flex-1-pint](https://www.desertcart.sc/products/27102944-sem-39728-super-flex-1-pint)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-24*