---
product_id: 8018794
title: "SEM 39133 Flexible Primer Surfacer - 13 oz."
brand: "sem"
price: "€ 55.48"
currency: EUR
in_stock: true
reviews_count: 9
category: "Sem"
url: https://www.desertcart.hr/products/8018794-sem-39133-flexible-primer-surfacer-13-oz
store_origin: HR
region: Croatia
---

# 10 sq ft coverage per can 1-hour dry time flexible for plastics & bumpers SEM 39133 Flexible Primer Surfacer - 13 oz.

**Brand:** sem
**Price:** € 55.48
**Availability:** ✅ In Stock

## Summary

> 🚀 Flex your finish game with SEM’s 39133 Flexible Primer Surfacer!

## Quick Answers

- **What is this?** SEM 39133 Flexible Primer Surfacer - 13 oz. by sem
- **How much does it cost?** € 55.48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/8018794-sem-39133-flexible-primer-surfacer-13-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

- • **Spray & Save Time:** Ready-to-spray formula accelerates your refinishing workflow
- • **Fast-Dry Efficiency:** Dries in just 1 hour to keep projects moving
- • **Flexibility That Lasts:** Formulated to flex with bumper covers and plastics, preventing cracks
- • **Universal Compatibility:** Top coats seamlessly with most refinish materials for professional results
- • **Smooth Finish, Every Time:** Easy to sand for flawless surface prep

## Overview

SEM 39133 Flexible Primer Surfacer is a 13 oz aerosol primer designed for automotive plastics and bumper covers. It offers a quick 1-hour dry time, covers up to 10 square feet per can, and features a flexible formulation that prevents cracking. Easy to sand and compatible with most top coats, it’s the go-to choice for professionals seeking durable, high-quality refinishing results.

## Description

Flexible Primer Surfacer is a time saving coating that provides superior film build and flexibility when refinishing bumper covers and other plastics.

Review: Job done - Dem is a good product
Review: Works great on car bumper - Fills in bumper imperfections perfectly

## Features

- Ready to spray
- Quick drying
- Easy to sand
- Flexible formulation
- Top coat with most refinish materials

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000HAXLZO |
| Age Range Description | Adult |
| Best Sellers Rank | #36,573 in Automotive ( See Top 100 in Automotive ) #23 in Automotive Primers |
| Brand | SEM |
| Brand Name | SEM |
| Color | Gray |
| Color Code | #808080 |
| Container Type | Can |
| Coverage | 10 square feet per can |
| Customer Reviews | 4.4 out of 5 stars 536 Reviews |
| Dry Time In Hours | 1 |
| Finish Type | Primer |
| Full Cure Time | 1E+1 Minutes |
| Global Trade Identification Number | 00646786391330 |
| Included Components | Spray Nozzle |
| Indoor Outdoor Usage | Indoor |
| Is Waterproof | False |
| Item Form | Aerosol |
| Item Volume | 13 Fluid Ounces |
| Item Weight | 1 Pounds |
| Manufacturer | SEM |
| Model Name | 39133 |
| Model Number | 39133 |
| Paint Type | Flexible Primer Surfacer |
| Part Number | 39133 |
| Size | 13 Fl Oz (Pack of 1) |
| Special Feature | Flexible |
| Special Features | Flexible |
| Specific Uses For Product | Automotive Surface Refinishing |
| Surface Recommendation | Plastics |
| UPC | 646786391330 |
| Unit Count | 371 Grams |
| Warranty Description | Call vendor for warranty |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** SEM
- **Color:** Gray
- **Finish Type:** Primer
- **Item Volume:** 13 Fluid Ounces
- **Paint Type:** Flexible Primer Surfacer
- **Size:** 13 Ounce (Pack of 1)
- **Special Feature:** Flexible
- **Specific Uses For Product:** Automotive Surface Refinishing
- **Surface Recommendation:** Plastics
- **Unit Count:** 13.0 Ounce

## Images

![SEM 39133 Flexible Primer Surfacer - 13 oz. - Image 1](https://m.media-amazon.com/images/I/61Rg3B5a9VL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Job done
*by R***S on April 26, 2026*

Dem is a good product

### ⭐⭐⭐⭐⭐ Works great on car bumper
*by V***N on April 10, 2026*

Fills in bumper imperfections perfectly

### ⭐⭐⭐⭐⭐ Beautiful results, quality products!
*by T***I on August 20, 2018*

We purchased all the spray products, from the adhesion promoter, primer, color coat, and clear coat satin finish. In addition to following the can direction, we also followed some very specific technique directions we found on the internet, about painting plastic dashboards (which was the project). Basically, follow all can directions, GENTLY and LIGHTLY WET sand the surfaces with 800 grit, dry, and clean well with alcohol before starting. Start with adhesion promoter, follow can instruction. Then spray primer, color, and clear coat in 2 - 3 very light coats, each, and when you finish all primer coats, wait 24 hours to start color coats, and do the same when color coats are done, and you are ready to clear coat the piece(s). We allowed all of that to dry for 48 hours, before reinstalling. It looks wonderful. Not like we just spray painted a dash. It's a hard finish, and no chips or scratches when it was re-installed in the vehicle. Compared to spray paint, it's a little pricey, but it was well worth every penny.

## Frequently Bought Together

- SEM 39133 Flexible Primer Surfacer - 13 oz.
- SEM 39863 Plastic Adhesion Promoter Aerosol - 14.8 oz.
- SEM 39143 Trim Black Spray Aerosol (2)

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**Shop now:** [https://www.desertcart.hr/products/8018794-sem-39133-flexible-primer-surfacer-13-oz](https://www.desertcart.hr/products/8018794-sem-39133-flexible-primer-surfacer-13-oz)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-28*