---
product_id: 9372869
title: "SEM 39863 Plastic Adhesion Promoter Aerosol - 14.8 oz."
brand: "sem"
price: "50030CFA"
currency: XOF
in_stock: true
reviews_count: 8
url: https://www.desertcart.sn/products/9372869-sem-39863-plastic-adhesion-promoter-aerosol-14-8-oz
store_origin: SN
region: Senegal
---

# 14.8 oz aerosol for easy, precise application Low viscosity formula ensures smooth, even coverage Optimized adhesion for raw plastic bumpers & interiors SEM 39863 Plastic Adhesion Promoter Aerosol - 14.8 oz.

**Brand:** sem
**Price:** 50030CFA
**Availability:** ✅ In Stock

## Summary

> 🛡️ Lock in flawless finishes with SEM’s Plastic Adhesion Promoter!

## Quick Answers

- **What is this?** SEM 39863 Plastic Adhesion Promoter Aerosol - 14.8 oz. by sem
- **How much does it cost?** 50030CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/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

- • **Spray & Slay:** Aerosol delivery for fast, mess-free application every time
- • **Seal & Secure:** Boosts topcoat adhesion on raw plastics for lasting durability
- • **Precision Perfect:** Low viscosity ensures flawless, even coverage without drips
- • **Pro-Grade Formula:** Trusted SEM brand quality engineered for professional results
- • **Ready When You Are:** 14.8 oz can size balances portability with ample volume

## Overview

SEM 39863 Plastic Adhesion Promoter is a professional-grade aerosol spray designed to enhance adhesion of topcoats on raw plastic surfaces like bumpers and interior parts. Featuring a low viscosity formula in a convenient 14.8 oz can, it ensures smooth, even coverage and reliable sealing for durable, long-lasting finishes.

## 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 | #14,800 in Automotive ( See Top 100 in Automotive ) #28 in Body Repair & Restoration Adhesives |
| Brand | SEM |
| Brand Name | SEM |
| Color | clear |
| Compatible Material | Plastic |
| Container Type | Aerosol Can |
| Customer Reviews | 4.7 out of 5 stars 657 Reviews |
| Item Form | Spray |
| Item Height | 9.81 inches |
| Item Package Quantity | 1 |
| Item Weight | 16 ounces |
| Manufacturer | SEM |
| Material | adhesion promoter |
| Material Type | adhesion promoter |
| Model | 39863 |
| Package Information | Aerosol Can |
| UPC | 646786398636 |
| Unit Count | 14.8 Ounce |
| Viscosity | Low |
| Volume | 14.8 Fluid Ounces |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** SEM
- **Material:** adhesion promoter
- **Item Form:** Spray
- **Color:** clear
- **Item Package Quantity:** 1

## 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works as stated.
*by L***Y on July 29, 2025*

I painted a couple filler panels between tank and fairings on my Honda motorcycle. I used this as it was recommended by SEM, also the maker of the top coat I had chosen. It goes on thin so no real buildup in thickness of the paint which is desirable. If you follow directions it will not run. I top coated using multiple light coats and the result is a professional looking paint job. These products are not cheap but sometimes you have to do it right when painting a high value project. I would recommend this product to anyone.

### ⭐⭐⭐⭐⭐ Outstanding brand, perfect results!
*by T***I on August 20, 2018*

We purchased all the spray products, from the adhesion promoter, primer, color coat, and clear coat satin finish. In addition to following the can direction, we also followed some very specific technique directions we found on the internet, about painting plastic dashboards (which was the project). Basically, follow all can directions, GENTLY and LIGHTLY WET sand the surfaces with 800 grit, dry, and clean well with alcohol before starting.Start with adhesion promoter, follow can instruction.Then spray primer, color, and clear coat in 2 - 3 very light coats, each, and when you finish all primer coats, wait 24 hours to start color coats, and do the same when color coats are done, and you are ready to clear coat the piece(s). We allowed all of that to dry for 48 hours, before reinstalling.It looks wonderful. Not like we just spray painted a dash. It's a hard finish, and no chips or scratches when it was re-installed in the vehicle.Compared to spray paint, it's a little pricey, but it was well worth every penny.

### ⭐⭐⭐⭐⭐ Great prep
*by L***N on August 14, 2024*

It really helps bond the paint to a good prepared surface area. Will definitely get more for my truck project

## 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)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sn/products/9372869-sem-39863-plastic-adhesion-promoter-aerosol-14-8-oz](https://www.desertcart.sn/products/9372869-sem-39863-plastic-adhesion-promoter-aerosol-14-8-oz)

---

*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-20*