--- product_id: 28281842 title: "3121 0400 Stain Waterproofing Brush, 4 in.,Brown,WM 3121-0400" brand: "linzer" price: "18105CFA" currency: XOF in_stock: true reviews_count: 13 category: "Linzer" url: https://www.desertcart.sn/products/28281842-3121-0400-stain-waterproofing-brush-4-in-brown-wm-3121 store_origin: SN region: Senegal --- # Polyester bristles optimized for stain & waterproofing 4-inch wide brush for broad coverage Durable steel ferrule with ergonomic beavertail handle 3121 0400 Stain Waterproofing Brush, 4 in.,Brown,WM 3121-0400 **Brand:** linzer **Price:** 18105CFA **Availability:** ✅ In Stock ## Summary > 🖌️ Elevate your staining game—because your surfaces deserve the pro touch! ## Quick Answers - **What is this?** 3121 0400 Stain Waterproofing Brush, 4 in.,Brown,WM 3121-0400 by linzer - **How much does it cost?** 18105CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/28281842-3121-0400-stain-waterproofing-brush-4-in-brown-wm-3121) ## Best For - linzer enthusiasts ## Why This Product - Trusted linzer brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Steel ferrule and quality construction mean this brush holds up wash after wash—no flaking or shedding. - • **Broad 4-Inch Sweep:** Cover more surface area with every stroke, speeding up your project. - • **Polyester Precision:** Flagged polyester bristles ensure smooth, even stain and waterproofing application without streaks. - • **Versatile Compatibility:** Perfectly engineered for all stains and waterproofing products, making it your go-to tool for any project. - • **Ergonomic Beavertail Handle:** Comfort meets control for fatigue-free, professional results on large or detailed surfaces. ## Overview The Linzer 3121 0400 is a 4-inch polyester staining and waterproofing brush featuring a burgundy beavertail handle and steel ferrule. Designed for durability and precision, it delivers smooth, even coverage for all stain and waterproofing products. Highly rated for quality and reusability, it’s a reliable choice for both DIY enthusiasts and professionals aiming for flawless finishes. ## Description 4", polyester staining and waterproofing brush, Burgundy beavertail handle, chiseled trim, steel ferrule, for all stains and waterproofing products. Review: LOVE this brush! - I used this brush to hand paint a 18x14 screen in porch, floor and walls. This brush worked very well for the price, and I was able to wash and reuse for several days. I read a review stating the brush fell apart after using once, but I definitely did not experience this. The brush is wide and thick, which is perfect for painting plank wood. Considering the quarantine, I was limited in options as to what type of brush I could get. But his definitely worked perfectly and you can't beat the price. I highly recommend. Review: Reasonably Priced for the Quality You Get - Good bristles. Spreads stain nicely. ## Features - Made in china - It has Polyester staining and waterproofing brush - For all Stains and waterproofing products - Model number: 3121 0400 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000BQKTUE | | Best Sellers Rank | #177,210 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #372 in Household Bristle Paint Brushes | | Brand | Linzer | | Brand Name | Linzer | | Bristle Type | Flagged Bristle | | Brush Width | 4 Inches | | Color | Brown | | Customer Reviews | 4.6 out of 5 stars 2,179 Reviews | | Global Trade Identification Number | 00077089312171, 30077089312172 | | Handle Type | Beavertail Handle | | Included Components | Linzer 3121 0400 Stain Waterproofing Brush, 4 in. | | Item Type Name | Linzer 3121 0400 Stain Waterproofing Brush, 4 in. | | Item Weight | 9.07 g | | Manufacturer | Linzer Products | | Manufacturer Part Number | 3121 0400 | | Manufacturer Warranty Description | Warranty. | | Material | Polyester | | Material Type | Polyester | | Model Number | 3121 0400 | | Paint Type | Specialty | | Size | 4 Inch | | UPC | 077089312171 783961082567 785577089633 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Linzer - **Brush Width:** 4 Inches - **Color:** Brown - **Material:** Polyester - **Size:** 4 Inch ## Images ![3121 0400 Stain Waterproofing Brush, 4 in.,Brown,WM 3121-0400 - Image 1](https://m.media-amazon.com/images/I/61yXwl-AIHL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ LOVE this brush! *by J***R on April 10, 2020* I used this brush to hand paint a 18x14 screen in porch, floor and walls. This brush worked very well for the price, and I was able to wash and reuse for several days. I read a review stating the brush fell apart after using once, but I definitely did not experience this. The brush is wide and thick, which is perfect for painting plank wood. Considering the quarantine, I was limited in options as to what type of brush I could get. But his definitely worked perfectly and you can't beat the price. I highly recommend. ### ⭐⭐⭐⭐⭐ Reasonably Priced for the Quality You Get *by B***D on July 21, 2025* Good bristles. Spreads stain nicely. ### ⭐⭐⭐⭐ Good Brush - Linzer 3121 0400 Stain Waterproofing Brush, 4 in. *by D***E on June 24, 2020* I used this brush to stain my modest-sized deck, 14 x 10. I apply an oil-based stain, and I'm not one to scrub furiously with turpentine or linseed oil to clean the brush; it's never the same afterward, no matter how meticulous you are. So I stain and toss. This brush held-up very well under the pressure. It got into all the nooks, crannies and grooves and did a great job with the stain. No bristles came off the brush during application. I've completed my project this year, but am ordering another one to have on hand for next time I have to maintain the deck again in a few years. From my experience, this is a decently-priced, good product for this one-time use. ## Frequently Bought Together - Linzer 3121 0400 Stain Waterproofing Brush, 4 in.,Brown,WM 3121-0400 - Garden Box Sealer | FDA Food Contact Safe Plant-Based Wood Sealant for Raised Beds, Planters & Pet Houses. Protects All Wood Types from Water & Weather Damage | Eco-Friendly Sustainable Solution - Pro Grade, Paint Brushes, 5-Piece, Paint Brush Set: Flat & Angle Brushes for Latex and Oil Paints, Stains, Interior & Exterior Home Improvement --- ## 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.sn/products/28281842-3121-0400-stain-waterproofing-brush-4-in-brown-wm-3121](https://www.desertcart.sn/products/28281842-3121-0400-stain-waterproofing-brush-4-in-brown-wm-3121) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-07-15*