--- product_id: 13813133 title: "42003 Black High Build Primer - 16 oz." brand: "sem" price: "792 kr" currency: NOK in_stock: true reviews_count: 8 category: "Sem" url: https://www.desertcart.no/products/13813133-42003-black-high-build-primer-16-oz store_origin: NO region: Norway --- # 11 sq. ft. coverage at 2 mil DFT for efficient use 1 hour dry time for fast project turnaround 16 oz aerosol can for easy application 42003 Black High Build Primer - 16 oz. **Brand:** sem **Price:** 792 kr **Availability:** ✅ In Stock ## Summary > 🚀 Elevate your finish game with SEM 42003 – where precision meets speed! ## Quick Answers - **What is this?** 42003 Black High Build Primer - 16 oz. by sem - **How much does it cost?** 792 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/13813133-42003-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 - • **Time-Saving Fast Dry:** Dries in just 1 hour with 5-10 minute flash time between coats to keep your workflow moving. - • **Visual Sanding Guide:** Black primer color highlights missed sanding spots, ensuring flawless prep before painting. - • **Premium Build Quality:** High-build elastomeric acrylic coating delivers superior coverage and sanding ease, outperforming many 2K primers. - • **Universal Bonding Power:** Adheres flawlessly to steel, aluminum, plastic, SMC, and fiberglass for versatile projects. - • **Precision Surface Perfection:** Self-leveling formula smooths out scratches and imperfections effortlessly. ## Overview SEM 42003 Black High Build Primer is a 16 oz aerosol primer designed for automotive and industrial use. It offers excellent adhesion to multiple surfaces including metal, aluminum, plastic, and fiberglass. With a fast 1-hour dry time and coverage of 11 sq. ft. at 2 mil DFT, it provides a high-build, self-leveling coating that sands smoothly and highlights sanding imperfections with its black color, making it a top choice for professionals seeking efficiency and flawless results. ## Description High-Build Primer Surfacer is an elastomeric acrylic coating for priming automotive metal, aluminum, urethane, and plastics. Review: Worth higher price for your project. - 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: Good product. Covers well - Nice primer for the money ## Features - Applications : Steel, Aluminum, Plastic, SMC, Fiberglass - 20 oz. Aerosol. Coverage: 11 sq. ft. at 2 mil DFT - Coats: 2-3 medium wet - Dry time: 1 hr. Flash time: 5-10 min between coats ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000PL07B6 | | Age Range Description | Adult | | Best Sellers Rank | #79,199 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #69 in Primer Paint | | Brand | SEM | | Brand Name | SEM | | Color | Black | | Color Code | SEM 42003 | | Container Type | Can | | Coverage | Not available | | Customer Reviews | 4.4 out of 5 stars 209 Reviews | | Dry Time In Hours | 1 | | Finish Type | Semi-Gloss | | Full Cure Time | 1 hours | | Global Trade Identification Number | 00646786420030 | | Included Components | 1 | | Is Waterproof | False | | Item Form | Aerosol | | Item Volume | 12 fluid ounces | | Item Weight | 16 ounces | | Manufacturer | SEM | | Model Name | 42003 | | Model Number | 42003 | | Paint Type | Regular | | Part Number | 42003 | | Size | 16 Ounce (Pack of 1) | | Special Feature | Fast-Drying | | Special Features | Fast-Drying | | Specific Uses For Product | Exterior/Interior | | Surface Recommendation | Metal, Wood | | UPC | 646786420030 | | Unit Count | 16 Ounce | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** SEM - **Color:** Black - **Finish Type:** Semi-Gloss - **Item Volume:** 12 fluid ounces - **Paint Type:** Regular - **Size:** 16 Ounce (Pack of 1) - **Special Feature:** Fast-Drying - **Specific Uses For Product:** Exterior/Interior - **Surface Recommendation:** Metal, Wood - **Unit Count:** 16 Ounce ## Images ![42003 Black High Build Primer - 16 oz. - Image 1](https://m.media-amazon.com/images/I/61boqv7DaAL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worth higher price for your project. *by R***. on January 2, 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. ### ⭐⭐⭐⭐⭐ Good product. Covers well *by J***S on January 4, 2026* Nice primer for the money ### ⭐⭐⭐⭐⭐ Auto primer *by B***Y on January 18, 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) --- ## 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.no/products/13813133-42003-black-high-build-primer-16-oz](https://www.desertcart.no/products/13813133-42003-black-high-build-primer-16-oz) --- *Product available on Desertcart Norway* *Store origin: NO* *Last updated: 2026-09-16*