--- product_id: 482428530 title: "Fabbay 4 Pack 8.8 LB Fiberglass for Concrete Cement Fiber Additive, Mortar Anti Seepage Reinforcement Glass Chopped Strand for Garden Wall Build Anti Cracking White Concrete Mix, 3/4, 19 mm (8.8 lb)" brand: "fabbay" price: "¥25304" currency: JPY in_stock: true category: "Fabbay" url: https://www.desertcart.jp/products/482428530-fabbay-4-pack-8-8-lb-fiberglass-for-concrete-cement store_origin: JP region: Japan --- # Reduces seepage & infiltration 4 packs, 8.8 lbs total Anti-crack reinforcement Fabbay 4 Pack 8.8 LB Fiberglass for Concrete Cement Fiber Additive, Mortar Anti Seepage Reinforcement Glass Chopped Strand for Garden Wall Build Anti Cracking White Concrete Mix, 3/4, 19 mm (8.8 lb) **Brand:** fabbay **Price:** ¥25304 **Availability:** ✅ In Stock ## Summary > 🧱 Reinforce your concrete game — build stronger, last longer! ## Quick Answers - **What is this?** Fabbay 4 Pack 8.8 LB Fiberglass for Concrete Cement Fiber Additive, Mortar Anti Seepage Reinforcement Glass Chopped Strand for Garden Wall Build Anti Cracking White Concrete Mix, 3/4, 19 mm (8.8 lb) by fabbay - **How much does it cost?** ¥25304 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/482428530-fabbay-4-pack-8-8-lb-fiberglass-for-concrete-cement) ## Best For - fabbay enthusiasts ## Why This Product - Trusted fabbay brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Easy Pro Mix:** Simply blend with sand, cement, and water; slightly longer mixing time ensures optimal fiber integration. - • **Seepage Shield:** Enhances cement density to minimize water infiltration—ideal for wet or exterior applications. - • **Quad-Pack Power:** Four 2.2 lb packs deliver consistent, high-impact reinforcement for large or multiple projects. - • **Crack-Defying Toughness:** Fiberglass fibers boost mortar durability to prevent fine cracks and extend structural lifespan. - • **Vibration Resistance Boost:** Lightweight yet strong fibers improve impact and vibration resistance for long-lasting concrete. ## Overview Fabbay’s 4-pack fiberglass additive (8.8 lbs total) is engineered to enhance mortar and concrete toughness by preventing cracks and reducing water seepage. Each 19mm fiber pack integrates seamlessly into cement mixes, boosting impact resistance and durability for both decorative and structural projects like garden walls, countertops, and exterior surfaces. ## Description Features: The mortar concrete reinforcement is suitable for a lot of decorative applications such as countertops, fireplace surrounds, basement, pond, exterior wall and other wet places. Mixing glass fiber and mortar to make the mortar stronger, so to reduce the cracking problem. Specifications: Material: fiberglass for cementColor: whiteSize: 19 mmWeight: 1 kg of each packPackage includes: 4 Packs of fiberglass for cementNotes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. ## Features - Package Content: you will get 4 packs of concrete, each pack is about 2.2 pound ；Add more for high impact or severe freeze or thaw areas - To Avoid Cracks: mixing glass fiber and mortar to enhance the toughness of the mortar, so to avoid the formation of fine cracks - Anti Seepage Fiberglass for Cement: these fibers for concrete reinforcement are good at increasing cement density, so they can reduce infiltration to some extent, can be widely applied to countertop, exterior wall and other decorative or reinforcement uses - Impact Resistant Concrete Fibers: the fibers are light but strong, which can increase the vibration resistance of the cement, suitable for strengthening cement projects - Using Tips: just blend sand, cement and fibers for concrete, then add the right amount of water, and stir evenly; Please note that the mixing time is 30 to 60 seconds longer than the time of stirring without glass fiber ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BLXT3V5Z | | Best Sellers Rank | #98,846 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #65 in Fiberglass Raw Materials | | Brand Name | Fabbay | | Color | White | | Customer Reviews | 4.6 4.6 out of 5 stars (120) | | Grade Rating | Commercial | | Item Diameter | 19 millimeters | | Item Dimensions | 12.4 x 9.84 x 7.48 inches | | Item Form | Flat Rod | | Item Shape | Rectangular | | Item Thickness | 19 millimeters | | Manufacturer | Fabbay | | Material | Fiberglass | | Model Number | FM-Fabbay-471 | | Number of Items | 4 | | Part Number | FM-Fabbay-471 | | Unit Count | 4 Count | ## Product Details - **Brand:** Fabbay - **Color:** White - **Item dimensions L x W x H:** 12.4 x 9.84 x 7.48 inches - **Material:** Fiberglass - **Shape:** Rectangular ## Images ![Fabbay 4 Pack 8.8 LB Fiberglass for Concrete Cement Fiber Additive, Mortar Anti Seepage Reinforcement Glass Chopped Strand for Garden Wall Build Anti Cracking White Concrete Mix, 3/4, 19 mm (8.8 lb) - Image 1](https://m.media-amazon.com/images/I/41mfEhM7djL.jpg) ![Fabbay 4 Pack 8.8 LB Fiberglass for Concrete Cement Fiber Additive, Mortar Anti Seepage Reinforcement Glass Chopped Strand for Garden Wall Build Anti Cracking White Concrete Mix, 3/4, 19 mm (8.8 lb) - Image 2](https://m.media-amazon.com/images/I/41kGrLD9dkL.jpg) ![Fabbay 4 Pack 8.8 LB Fiberglass for Concrete Cement Fiber Additive, Mortar Anti Seepage Reinforcement Glass Chopped Strand for Garden Wall Build Anti Cracking White Concrete Mix, 3/4, 19 mm (8.8 lb) - Image 3](https://m.media-amazon.com/images/I/51Rz07KIWlL.jpg) ![Fabbay 4 Pack 8.8 LB Fiberglass for Concrete Cement Fiber Additive, Mortar Anti Seepage Reinforcement Glass Chopped Strand for Garden Wall Build Anti Cracking White Concrete Mix, 3/4, 19 mm (8.8 lb) - Image 4](https://m.media-amazon.com/images/I/5171n-Ogb8L.jpg) ![Fabbay 4 Pack 8.8 LB Fiberglass for Concrete Cement Fiber Additive, Mortar Anti Seepage Reinforcement Glass Chopped Strand for Garden Wall Build Anti Cracking White Concrete Mix, 3/4, 19 mm (8.8 lb) - Image 5](https://m.media-amazon.com/images/I/51lL3ljL80L.jpg) ## Available Options This product comes in different **Size, Number Of Items** options. ## Questions & Answers **Q: i'm making bigfoot cast will this show outside the cement? thanks** A: This will not show outside the cement. **Q: How much fiber per bag of concrete? Or the weight ratio of fiber to concrete? I read typically its 3% of total weight.** A: We added about 4 pinches of fiber per bag. Not a precise measurement but worked for us. Amount was recommended by a long time mason. ## Frequently Bought Together - Fabbay Fiberglass for Concrete Cement Fiber Additive, Mortar Anti Seepage Reinforcement Glass Fiberglass for Garden Building Wall Anti Cracking White Concrete Mix, 3/4", 19 mm(2 Pack,4.4 LB) - SIKA - SikaLatex R - Concrete Adhesive Glue, White - Admix for Portland-Cement Mortar/Concrete - Resistant to Freezing and thawing Damage - 1-Gallon - Alpha Pro Fluidizer 1 lb - Dry superplasticizer for Any Concrete Countertop Mix --- ## 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.jp/products/482428530-fabbay-4-pack-8-8-lb-fiberglass-for-concrete-cement](https://www.desertcart.jp/products/482428530-fabbay-4-pack-8-8-lb-fiberglass-for-concrete-cement) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-30*