---
product_id: 268467462
title: "SEM 42003 Black High Build Primer - 16 oz."
brand: "sem"
price: "€ 93.41"
currency: EUR
in_stock: true
reviews_count: 5
category: "Sem"
url: https://www.desertcart.it/products/268467462-sem-42003-black-high-build-primer-16-oz
store_origin: IT
region: Italy
---

# Black color for easy sanding visibility Fast-drying with self-leveling build Superior adhesion on metal, plastic & aluminum SEM 42003 Black High Build Primer - 16 oz.

**Brand:** sem
**Price:** € 93.41
**Availability:** ✅ In Stock

## Summary

> 🖤 Level up your paint game with the primer pros trust!

## Quick Answers

- **What is this?** SEM 42003 Black High Build Primer - 16 oz. by sem
- **How much does it cost?** € 93.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/268467462-sem-42003-black-high-build-primer-16-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

- • **Pro-Level Finish:** Self-leveling formula sands beautifully wet or dry for a flawless topcoat
- • **Time-Saving Fast Dry:** Dries quickly so you can move faster from prep to paint
- • **Flawless Surface Prep:** Builds a smooth, high-adhesion base that fills scratches effortlessly
- • **Universal Compatibility:** Works seamlessly on automotive metal, aluminum, urethane, and plastic
- • **Precision Sanding Visibility:** Black primer reveals missed spots instantly for perfect prep

## Overview

SEM 42003 Black High Build Primer is a fast-drying, semi-gloss automotive primer designed for superior adhesion and flexibility on metal, aluminum, urethane, and plastic surfaces. Its black color enhances sanding precision by highlighting missed areas, while its self-leveling formula fills scratches and sands smoothly wet or dry, covering 10-15 sq ft per 16 oz can.

## Description

? Superior adhesion film build and flexibility ? Works on automotive metal aluminum urethane and plastic

Review: Nice primer for the money
Review: This is one of the best primers I've ever used in a spray can. It has great bonding to any surface material, awesome build up properties to level off those small scratches, is self leveling and Sands beautifully wet or dry. What I like about the black is you can see very easily where you missed sanding before you start painting. A lot easier than White or Grey primers to notice. I used it under a silver metallic on aluminum rims and it covered perfect. Consider I've also used 2K primer in a can and would take this over that whenever possible. Did an especially nice job on plastic to fill the deeper scratches. SEM makes a great product, worth every penny of extra money.

## Features

- Item Category: Paint
- Item Trademark: SEM
- manufacturer: Generic

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000PL07B6 |
| ASIN  | B000PL07B6 |
| Batteries Included? | No |
| Batteries Required? | No |
| Color | Black |
| Coverage | Approximately 10-15 square feet per 16 oz. |
| Customer Reviews | 4.6 4.6 out of 5 stars (196) |
| Customer reviews | 4.6 4.6 out of 5 stars (196) |
| Date First Available | 10 August 2012 |
| Date First Available  | 10 August 2012 |
| Finish | Semi-Gloss |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 454 g |
| Item model number | 42003 |
| Item model number  | 42003 |
| Part number | 42003 |
| Product Dimensions | 27.94 x 15.24 x 15.24 cm; 453.59 g |
| Product Dimensions  | 27.94 x 15.24 x 15.24 cm; 453.59 g |
| Size | 1 Pound (Pack of 1) |
| Special Features | Fast-Drying |
| Specific uses | Automotive (Metal, Plastic) |

## Product Details

- **Brand:** SEM
- **Colour:** Black
- **Finish type:** Semi-Gloss
- **Item volume:** 12 Fluid Ounces
- **Size:** 1 Pound (Pack of 1)

## Images

![SEM 42003 Black High Build Primer - 16 oz. - Image 1](https://m.media-amazon.com/images/I/61boqv7DaAL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***S on 4 January 2026*

Nice primer for the money

### ⭐⭐⭐⭐⭐ Review
*by R***. on 2 January 2017*

This is one of the best primers I've ever used in a spray can. It has great bonding to any surface material, awesome build up properties to level off those small scratches, is self leveling and Sands beautifully wet or dry. What I like about the black is you can see very easily where you missed sanding before you start painting. A lot easier than White or Grey primers to notice. I used it under a silver metallic on aluminum rims and it covered perfect. Consider I've also used 2K primer in a can and would take this over that whenever possible. Did an especially nice job on plastic to fill the deeper scratches. SEM makes a great product, worth every penny of extra money.

### ⭐⭐⭐⭐⭐ Review
*by B***Y on 18 January 2024*

This primer is EXCELLENT! I use it to prime small metal parts in my auto restoration shop. It has a high build quality and is easy to sand. It dries quickly and the coverage is great! Buy this product!!

## Frequently Bought Together

- SEM 42003 Black High Build Primer - 16 oz.
- SEM 39673 Black Self Etching Primer - 15.5 oz.
- SEM 39143 Trim Black Spray Aerosol (2)

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-02-24*