

🛠️ Elevate your repairs with West System’s high-density filler—because flawless is the new standard!
West System 40445 High Density Filler is a 43-ounce epoxy additive designed to thicken mixtures and fill gaps with professional-grade density. Ideal for automotive and marine repairs, it delivers a smooth, durable finish trusted by experts and rated 4.7 stars by users.



















| ASIN | B0006JJAU6 |
| Batteries Required? | No |
| Best Sellers Rank | #44,921 in Automotive ( See Top 100 in Automotive ) #181 in Automotive Fillers, Adhesives & Sealants |
| Color | off-white |
| Customer Reviews | 4.7 4.7 out of 5 stars (96) |
| 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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