---
product_id: 655624907
title: "SEM Products 38363 Sand Free - Aerosol"
brand: "sem"
price: "S/.451"
currency: PEN
in_stock: false
reviews_count: 5
category: "Sem"
url: https://www.desertcart.pe/products/655624907-sem-products-38363-sand-free-aerosol
store_origin: PE
region: Peru
---

# 30-second paint window wet-on-wet adhesion promoter softens tough plastic substrates SEM Products 38363 Sand Free - Aerosol

**Brand:** sem
**Price:** S/.451
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Unlock flawless adhesion—because your project deserves the pro touch!

## Quick Answers

- **What is this?** SEM Products 38363 Sand Free - Aerosol by sem
- **How much does it cost?** S/.451 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/655624907-sem-products-38363-sand-free-aerosol)

## 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

- • **Pro-Grade Prep:** Trusted by classic car restorers and vinyl painters alike
- • **Plastic Perfect:** Specifically engineered to soften and prep hard-to-sand plastics
- • **Durability Boost:** Enhances paint longevity on challenging surfaces
- • **Fast-Track Finish:** Apply paint within 30 seconds for seamless adhesion
- • **Effortless Application:** Wet-on-wet formula eliminates extra sanding steps

## Overview

SEM Products 38363 Sand Free is a specialized aerosol adhesion promoter designed to soften difficult plastic substrates, enabling superior paint adhesion without sanding. With a quick 30-second window to apply paint after spraying, it streamlines prep work for professional-grade, durable finishes on automotive interiors and vinyl surfaces.

## Description

Sand Free is a unique wet-on-wet adhesion promoter for certain plastics. It softens the substrate promoting adhesion on difficult to sand areas.

Review: After calling SEM and getting some very helpful information from a nice gentleman, this was a simple job. I'm changing the color of the interior of my classic car, and I started with the console. After you spray the Sand Free, you have 30 seconds to lay down the first coat of paint. (The paint was also SEM for hard plastic). Apply 2-3 coats. I reassembled the console, and it looks great! Hopefully it will stand the test of time, as far as scratching or peeling...fingers crossed.
Review: Great preparation product to apply prior to vinyl paint. It really helped with paint adhesion.

## Features

- Sand Free is a unique wet-on-wet adhesion promoter for certain plastics
- It softens the substrate promoting adhesion on difficult to sand areas

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00B3HXM6I |
| ASIN  | B00B3HXM6I |
| Batteries Included? | No |
| Batteries Required? | No |
| Customer Reviews | 4.6 4.6 out of 5 stars (134) |
| Customer reviews | 4.6 4.6 out of 5 stars (134) |
| Date First Available | 9 March 2010 |
| Date First Available  | 9 March 2010 |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 227 g |
| Item model number | 38363 |
| Item model number  | 38363 |
| Part number | 38363 |
| Product Dimensions | 28.73 x 21.92 x 21.44 cm; 226.8 g |
| Product Dimensions  | 28.73 x 21.92 x 21.44 cm; 226.8 g |

## Images

![SEM Products 38363 Sand Free - Aerosol - Image 1](https://m.media-amazon.com/images/I/815v6N14zFL.jpg)

## Questions & Answers

**Q: Will this work with water based primers for exterior auto body parts?**
A: I would not use this with a primer, It is designed to "melt" the color coat into hard plastics and takes the place of primer for paint adhesion

**Q: Can Sand Free be used on plastic chrome I want black out or will it soften and wrinkle the chrome coating?**
A: You need to use SEM sku# 39863 if you are using an adhesion promoter. Sand Free is probably to agressive for the plastic chrome

**Q: Will this work for the textured Sail panels for my Avalanche?**
A: I used it on the fenders/trim on a jeep wrangler  and it worked very well. To answer your question it depends on exactly what kind if plastic you want to paint. SEM has a good website. Look up what plastic your sail panels are made from and see if SEM lists it as one that this works on. Just make sure to paint it while it is still wet with this solvent.

**Q: What is the difference between this and their other plastic adhesion promoters?**
A: I haven't used mine yet, however, it is recommended in this paint system and I have seen the results when the instructions are followed as directed by the manufacturer.  I am not going to risk using anything else.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by G***Y on 14 April 2019*

After calling SEM and getting some very helpful information from a nice gentleman, this was a simple job. I'm changing the color of the interior of my classic car, and I started with the console. After you spray the Sand Free, you have 30 seconds to lay down the first coat of paint. (The paint was also SEM for hard plastic). Apply 2-3 coats. I reassembled the console, and it looks great! Hopefully it will stand the test of time, as far as scratching or peeling...fingers crossed.

### ⭐⭐⭐⭐⭐ Review
*by N***E on 28 June 2025*

Great preparation product to apply prior to vinyl paint. It really helped with paint adhesion.

### ⭐⭐⭐⭐⭐ Review
*by M***K on 22 December 2025*

You have to apply adhesive before you spray the color coat. This is only for plastic that smears when rubbed with acetone. If it doesn't smear use sem regular spray adhesive. They are not interchangeable.

## Frequently Bought Together

- SEM 38363 Sand Free - 11.6 oz
- SEM 38353 Plastic Prep - 12 oz.
- SEM Paints SEM15243 Satin Black Color Coat Aerosol 12 Ounce (Pack of 1)

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-01-27*