---
product_id: 268388639
title: "High-Build Primer Surfacer Gray 16 oz. (6/Pack)"
brand: "sem"
price: "1814 Lei"
currency: RON
in_stock: true
reviews_count: 5
url: https://www.desertcart.ro/products/268388639-high-build-primer-surfacer-gray-16-oz-6-pack
store_origin: RO
region: Romania
---

# Fast 1-hour dry time Superior adhesion on multiple surfaces Easy sanding with 320-400 grit High-Build Primer Surfacer Gray 16 oz. (6/Pack)

**Brand:** sem
**Price:** 1814 Lei
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your auto prep game with speed and precision!

## Quick Answers

- **What is this?** High-Build Primer Surfacer Gray 16 oz. (6/Pack) by sem
- **How much does it cost?** 1814 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/268388639-high-build-primer-surfacer-gray-16-oz-6-pack)

## 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

- • **Rapid Ready:** Dries in just 1 hour—get your project moving without the wait
- • **Smooth Operator:** High-build formula fills imperfections and sands effortlessly for that pro-level prep
- • **Flexible & Durable:** Acrylic coating adapts to flexible or rigid substrates, ensuring lasting adhesion
- • **Pro-Grade Coverage:** Covers 11 sq. ft. per 2 mil coat—apply 2-3 medium coats for perfect results every time
- • **Multi-Surface Mastery:** Seamlessly primes steel, aluminum, urethane, fiberglass & plastics for flawless finishes

## Overview

SEM High-Build Primer Surfacer Gray (16 oz., 6-pack) is a fast-drying, acrylic primer designed for superior adhesion on steel, aluminum, urethane, fiberglass, and plastics. It offers excellent filling properties, easy sanding with 320-400 grit sandpaper, and dries in just 1 hour, covering 11 sq. ft. per 2 mil coat. Ideal for professional and DIY automotive refinishing projects requiring a smooth, durable base.

## Description

High-Build Primer Surfacer is a flexible acrylic coating for priming steel, aluminum, urethane, fiberglass and plastics. Features: Provides superior adhesion Excellent filling properties Works on flexible or rigid substrates Easy to sand Top coat with most refinish material Applications: Steel Aluminum Plastic SMC Fiberglass Properties: Coverage: 11 sq. ft. at 2 mil DFT Coats: 2-3 medium wet Dry time: 1 hr Flash time: 5-10 min between coats

## Features

- Gray auto primer provides superior adhesion
- Acrylic coasting that can be used as a steel, aluminum, urethane, fiberglass or plastic primer
- Filler primer is easy to sand with a 320-400 grit sandpaper
- Apply 2-3 medium coats of SEM High Build Automotive Primer
- Dry Time for the primer paint for cars: 1 hour

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Age Range Description | Adult |
| Asin | B08Q29DXTP |
| Best Sellers Rank | #246,377 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #173 in Primer Paint |
| Brand Name | SEM |
| Color | Gray |
| Color Code | #808080 |
| Container Type | Can |
| Coverage | Medium |
| Customer Reviews | 4.0 4.0 out of 5 stars (18) 4.0 out of 5 stars |
| Dry Time In Hours | 1 |
| Finish Type | High-Gloss |
| Full Cure Time | 1 Hours |
| Indoor Outdoor Usage | Outdoor |
| Is Waterproof | False |
| Item Form | Aerosol |
| Item Volume | 16 Fluid Ounces |
| Manufacturer | SEM |
| Paint Type | Acrylic |
| Part Number | 42013 |
| Size | 16 Ounce (Pack of 6) |
| Special Features | Fast-Drying |
| Specific Uses For Product | Interior/Exterior |
| Surface Recommendation | Fiberglass |
| Unit Count | 96 Ounce |
| Water Resistance Level | Water Repellent |

## Product Details

- **Brand:** SEM
- **Color:** Gray
- **Finish Type:** High-Gloss
- **Item Volume:** 16 Fluid Ounces
- **Paint Type:** Acrylic
- **Size:** 16 Ounce (Pack of 6)
- **Special Feature:** Fast-Drying
- **Specific Uses For Product:** Interior/Exterior
- **Surface Recommendation:** Fiberglass
- **Unit Count:** 96 Ounce

## Images

![High-Build Primer Surfacer Gray 16 oz. (6/Pack) - Image 1](https://m.media-amazon.com/images/I/71bz2ANFKZL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good quality primer for automotive
*by  on Reviewed in the United States October 6, 2025*

Best primer money can buy. It adheres to my 57 ford f250 body and allows for automotive paint to stick. I have tried the rustolum brand which caused the automotive paint to peel. If you’re doing a restoration, use this as it also has filler in the primer.

### ⭐⭐⭐⭐⭐ Great primer
*by  on Reviewed in the United States July 17, 2021*

Use in my shop all the time for small areas equals no waste

### ⭐⭐⭐⭐ Good coverage for sanding.
*by  on Reviewed in the United States February 23, 2024*

Restoration on antique farm tractor.

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**Shop now:** [https://www.desertcart.ro/products/268388639-high-build-primer-surfacer-gray-16-oz-6-pack](https://www.desertcart.ro/products/268388639-high-build-primer-surfacer-gray-16-oz-6-pack)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-07-17*