---
product_id: 279731133
title: "39863 Plastic Adhesion Promoter Aerosol - 14.8 oz."
brand: "sem"
price: "S$115"
currency: SGD
in_stock: true
category: "Sem"
url: https://www.desertcart.sg/products/279731133-39863-plastic-adhesion-promoter-aerosol-14-8-oz
store_origin: SG
region: Singapore
---

# Perfect prep for flawless paint finish Boosts adhesion on tough plastics Versatile on flexible & rigid surfaces 39863 Plastic Adhesion Promoter Aerosol - 14.8 oz.

**Brand:** sem
**Price:** S$115
**Availability:** ✅ In Stock

## Summary

> 🎯 Nail every paint job with SEM 39863 – the secret weapon for flawless adhesion!

## Quick Answers

- **What is this?** 39863 Plastic Adhesion Promoter Aerosol - 14.8 oz. by sem
- **How much does it cost?** S$115 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/279731133-39863-plastic-adhesion-promoter-aerosol-14-8-oz)

## 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

- • **Spray-On Convenience:** 14.8 oz aerosol delivers precise, mess-free coverage for professional results every time.
- • **Multi-Surface Mastery:** Works equally well on flexible plastics, rigid plastics, and even metal surfaces.
- • **Seamless Surface Prep:** Prepares both painted and bare plastics for a smooth, durable topcoat application.
- • **Trusted by Pros & DIYers:** Highly rated with 4.7 stars from 661 reviews, making it a go-to for automotive and furniture repairs.
- • **Unmatched Plastic Bonding Power:** Ensures paint and repair materials stick like never before on PP, TPO, and more.

## Overview

SEM 39863 Plastic Adhesion Promoter is a 14.8 oz aerosol spray designed to dramatically improve paint and repair material adhesion on challenging plastics like PP and TPO. Ideal for prepping flexible, rigid, and painted surfaces, it ensures a durable, professional finish trusted by automotive and furniture repair pros alike.

## Description

SEM 39863 Plastic Adhesion Promoter Aerosol - 14.8 oz. : desertcart.ae: Automotive

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007VTSRZ8 |
| Best Sellers Rank | #16,189 in Automotive ( See Top 100 in Automotive ) #73 in Automotive Fillers, Adhesives & Sealants |
| Brand | SEM |
| Brand Name | SEM |
| Color | clear |
| Colour | clear |
| Compatible Material | Plastic |
| Container Type | Aerosol Can |
| Customer Reviews | 4.7 out of 5 stars 661 Reviews |
| Item Form | Spray |
| Item Package Quantity | 1 |
| Item Weight | 1 Pounds |
| Item form | Spray |
| Manufacturer | SEM |
| Material | adhesion promoter |
| Material Type | adhesion promoter |
| Model | 39863 |
| Other Special Features of the Product | Promotes adhesion to problem plastics such as PP or TPO and repair materials |
| Part Number | 39863 |
| Special features | Promotes adhesion to problem plastics such as PP or TPO and repair materials |
| Specific Uses For Product | Repair, Furniture |
| Specific uses for product | Repair, Furniture |
| UPC | 646786398636 |
| Unit Count | 14.8 Fluid Ounces |
| Viscosity Level | Low |
| Volume | 14.8 Fluid Ounces |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** SEM
- **Item form:** Spray
- **Material:** adhesion promoter
- **Special features:** Promotes adhesion to problem plastics such as PP or TPO and repair materials
- **Specific uses for product:** Repair, Furniture

## Images

![39863 Plastic Adhesion Promoter Aerosol - 14.8 oz. - Image 1](https://m.media-amazon.com/images/I/218CZj3QLeL.jpg)

## Questions & Answers

**Q: Getting ready to paint a plastic canoe. Will this product work well for that?**
A: Without knowing the type of plastic the canoe is made of I can’t say for sure. 
It’s designed to be sprayed on, then the paint applied between 5 and 15 minutes. 
When used on my door panels, I can only guess that it has helped with the adhesion since there have been no spots where the paint has chipped off. 
SEM is a great product line. 
I would recommend using this product to prep the canoe before painting, especially since it will be in water

**Q: Should the sem 39863 aerosol can have a rattle ball in it?
have shaken it multiple times and it does not seem to have one??**
A: Mine also does not have a rattle ball.  I got it a couple of years ago. Worked great. I'm guessing its doesn't separate as much in the can; so it does need it.

**Q: will this product cover or repair cracked leather, arms rests in vehicles ? Thnaks**
A: No , I don't think it would .

**Q: I have chrome plastic grill trim which I want to paint black. Will this work if I scuff the plastic, use adhesion promoter, primer a black paint**
A: I have tried every adhesion promoter out there. I have sanded the Chrome completely dull. First a small rock chip then the wicking under the finish and now you have a chrome grille all jacked up with scratches and patches of black. Take my word for it just buy a black grille.  I have been in the industry since 1980. Nothing sticks to chrome. Period.

## Frequently Bought Together

- SEM 39863 Plastic Adhesion Promoter Aerosol - 14.8 oz.
- SEM 38353 Plastic Prep - 12 oz.
- SEM Paints SEM15243 Satin Black Color Coat Aerosol 12 Ounce (Pack of 1)

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**Shop now:** [https://www.desertcart.sg/products/279731133-39863-plastic-adhesion-promoter-aerosol-14-8-oz](https://www.desertcart.sg/products/279731133-39863-plastic-adhesion-promoter-aerosol-14-8-oz)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-09-28*