

🛠️ Elevate your repair game with the ultimate epoxy thickener!
West System 40445 High Density Filler is a 43-ounce epoxy additive designed to thicken mixtures and fill gaps with precision. Its high-density formula enhances strength and durability, making it ideal for automotive and marine repairs. Compatible exclusively with West System epoxy products, it offers a smooth off-white finish for easy sanding and professional results. Trusted by users since 2013 with a 4.7-star rating, this filler is a must-have for flawless, long-lasting repairs.



















| ASIN | B0006JJAU6 |
| Batteries Required? | No |
| Best Sellers Rank | #204,091 in Automotive ( See Top 100 in Automotive ) #482 in Automotive Fillers, Adhesives & Sealants |
| Color | off-white |
| Customer Reviews | 4.7 4.7 out of 5 stars (95) |
| Date First Available | 30 October 2013 |
| Item model number | 404-45 |
| Material Type(s) | epoxy; filler |
| Number of Puzzle Pieces | 1 |
| Product Dimensions | 53.98 x 40.64 x 29.21 cm; 1.5 kg |
B**I
Nice addition to west epoxy, thickens mixture and fills gaps, just as advertised.
G**S
Works has West System had said
R**U
west system is great products
K**A
I use West System products exclusively when doing marine fiberglass repairs/modifications. There are many different filler options, so choose the one that best fits your needs. Mix the resin, add the filler and mix to your desired consistency, then apply. For me, usually similar to mayonnaise works best. Drying time will depend on your choice of hardener and if you've adjusted the resin/hardener ratio.
I**G
Must have for epoxy work, mixes well without clumps
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