---
product_id: 20782683
title: "SEM 38203 Black Guide Coat - 12 oz."
brand: "sem"
price: "$36.00"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.us/products/20782683-sem-38203-black-guide-coat-12-oz
store_origin: US
region: United States of America
---

# Quick-Dry Formula Precision Surface Detection Matte Black Finish SEM 38203 Black Guide Coat - 12 oz.

**Brand:** sem
**Price:** $36.00
**Availability:** ✅ In Stock

## Summary

> 🖤 Spot the flaws before they spot you – perfect prep for flawless finishes!

## Quick Answers

- **What is this?** SEM 38203 Black Guide Coat - 12 oz. by sem
- **How much does it cost?** $36.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/20782683-sem-38203-black-guide-coat-12-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

- • **Fast-Drying Aerosol:** Dries quickly without clogging sandpaper, speeding up your workflow.
- • **Optimized Adhesion Prep:** Prepares panels to improve adhesion of repair and refinishing materials.
- • **Matte Finish for Clarity:** Non-reflective black coating ensures every imperfection is visible.
- • **Non-Toxic & User-Friendly:** Safe for indoor use with a non-toxic formula, ideal for professional shops.
- • **Flawless Surface Detection:** Black guide coat highlights low spots and scratches for perfect sanding.

## Overview

The SEM 38203 Black Guide Coat is a 12 oz aerosol spray designed for autobody refinishing professionals. Its matte black, quick-drying formula highlights imperfections like low spots and scratches on primers, enabling precise sanding without clogging sandpaper. Non-toxic and water-repellent, it prepares painted surfaces to enhance adhesion of repair materials, covering up to 100 square feet per can.

## Description

SEM 38203 Black Guide Coat - 12 oz.

## Features

- Scuff & Clean is an abrasive paste that cleans and prepares panels for refinishing
- Scuff & Clean prepares bumpers or panels when refinishing or blending
- It's abrasive action improves adhesion of repair and refinishing materials

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | SEM |
| Color | Black |
| Finish Type | Matte |
| Size | 12 Ounce (Pack of 1) |
| Item Volume | 12 Fluid Ounces |
| Special Feature | Non Toxic |
| Unit Count | 12.0 Ounce |
| Paint Type | Spray |
| Specific Uses For Product | Autobody refinishing and repair |
| Surface Recommendation | Painted Surfaces |
| Indoor/Outdoor Usage | Indoor |
| Item Form | Aerosol |
| Included Components | automotive-clear-coat-paints |
| Is Waterproof | False |
| Model Name | 38203 |
| Package Information | Can |
| Color Code | #000000 |
| Coverage | 50-100 square feet |
| Water Resistance Level | Water Repellent |
| UPC | 646786382031 767887388248 |
| Global Trade Identification Number | 00646786382031 |
| Manufacturer | SEM |
| Item Package Dimensions L x W x H | 7.8 x 2.48 x 2.4 inches |
| Package Weight | 0.46 Kilograms |
| Item Dimensions  LxWxH | 11.31 x 8.63 x 8.44 inches |
| Item Weight | 16 ounces |
| Brand Name | SEM |
| Warranty Description | Warranty |
| Material | Plastic |
| Suggested Users | unisex-adult |
| Number of Items | 1 |
| Part Number | 38203 |

## Product Details

- **Brand:** SEM
- **Color:** Black
- **Finish Type:** Matte
- **Size:** 12 Ounce (Pack of 1)
- **Item Volume:** 12 Fluid Ounces
- **Special Feature:** Non Toxic
- **Unit Count:** 12.0 Ounce
- **Paint Type:** Spray
- **Specific Uses For Product:** Autobody refinishing and repair
- **Surface Recommendation:** Painted Surfaces

## Images

![SEM 38203 Black Guide Coat - 12 oz. - Image 1](https://m.media-amazon.com/images/I/51uo0oAQKVL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Guide coat finds defects
*by A***  on December 8, 2024*

Best guide coat , spray a mist for blocking auto body repairs after spraying primer add guide coat for any pin holes or low spot areas reprime and prepare for final paint . Best results when using this product.

### ⭐⭐⭐⭐⭐ Works like it’s supposed to!
*by A***M on July 23, 2024*

Works great, doesn’t clog up your paper like regular spray paint would. One can was depleted after covering this entire Mustang so you can see the mileage you get out of one can. Will buy again.

### ⭐⭐⭐⭐⭐ Highly recommended for eliminating uneven surfaces to which a smoothing medium has been applied.
*by T***A on February 26, 2019*

A really useful product for eliminating the irregularities in uneven surfaces to which a smoothing medium has been applied. As you sand the surface the black guide coat is removed first from the high spots thereby revealing the low spots which may be addressed by additional sanding or the application of more smoothing medium. Guide coat is formulated not to clog your abrasive medium, which speeds up the process and produces a better finish.

## Frequently Bought Together

- SEM 38203 Black Guide Coat - 12 oz.
- Clean Sheets - CLN-CS100 Superior Mixing Pad (12x12) - 100 Disposable Sheets FOR Toughest Job, Clear
- Dura-Gold Premium 800 Grit Gold PSA Longboard Sandpaper 20 Yard Long Continuous Roll, 2-3/4" Wide - Self Adhesive Stickyback Sandpaper for Automotive, Woodworking Air File Sanders, Hand Sanding Blocks

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**Shop now:** [https://www.desertcart.us/products/20782683-sem-38203-black-guide-coat-12-oz](https://www.desertcart.us/products/20782683-sem-38203-black-guide-coat-12-oz)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-12*