---
product_id: 9372869
title: "SEM 39863 Plastic Adhesion Promoter Aerosol - 14.8 oz."
brand: "sem"
price: "AR$162560"
currency: ARS
in_stock: true
category: "Sem"
url: https://www.desertcart.com.ar/products/9372869-sem-39863-plastic-adhesion-promoter-aerosol-14-8-oz
store_origin: AR
region: Argentina
---

# Compatible with PP, TPO & repair materials Boosts adhesion on tough plastics 14.8 oz aerosol spray for easy application SEM 39863 Plastic Adhesion Promoter Aerosol - 14.8 oz.

**Brand:** sem
**Price:** AR$162560
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your plastic repairs with pro-grade adhesion power!

## Quick Answers

- **What is this?** SEM 39863 Plastic Adhesion Promoter Aerosol - 14.8 oz. by sem
- **How much does it cost?** AR$162560 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/9372869-sem-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

- • **Trusted by Pros:** Ranked #34 in Body Repair Adhesives with a stellar 4.7-star rating from 693 users
- • **Low Viscosity Formula:** Optimized for quick drying and superior paint adhesion without clumping
- • **Versatile Compatibility:** Engineered for problem plastics like polypropylene (PP) and thermoplastic olefin (TPO)
- • **Precision Aerosol Delivery:** 14.8 oz spray can ensures smooth, even coverage every time
- • **Unmatched Plastic Bonding Power:** Seals and primes raw plastic surfaces for flawless topcoat adhesion

## Overview

SEM 39863 Plastic Adhesion Promoter is a 14.8 oz aerosol spray designed to enhance the bond between raw plastic surfaces—especially challenging materials like PP and TPO—and topcoat paints. Highly rated and favored in automotive body repair, it delivers low viscosity, easy application, and professional-grade results that ensure your plastic parts stay flawless and durable.

## Description

Plastic Adhesion Promoter helps seal substrates and increases adhesion of topcoat materials to raw plastic bumpers and interior parts.

## Features

- New

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007VTSRZ8 |
| Best Sellers Rank | #13,852 in Automotive ( See Top 100 in Automotive ) #34 in Body Repair & Restoration Adhesives |
| Brand Name | SEM |
| Color | clear |
| Compatible Material | Plastic |
| Container Type | Aerosol Can |
| Customer Reviews | 4.7 4.7 out of 5 stars (693) |
| Item Form | Spray |
| Item Package Quantity | 1 |
| Item Weight | 16 ounces |
| Manufacturer | SEM |
| 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 |
| UPC | 646786398636 |
| Unit Count | 14.8 Ounce |
| Viscosity Level | Low |
| Volume | 14.8 fluid ounces |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** SEM
- **Color:** clear
- **Item Form:** Spray
- **Material:** adhesion promoter
- **Special Feature:** Promotes adhesion to problem plastics such as PP or TPO and repair materials

## Images

![SEM 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.com.ar/products/9372869-sem-39863-plastic-adhesion-promoter-aerosol-14-8-oz](https://www.desertcart.com.ar/products/9372869-sem-39863-plastic-adhesion-promoter-aerosol-14-8-oz)

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-09-07*