

⚡ Elevate your repairs with West System’s high-density filler — don’t let gaps hold you back!
West System 40445 High Density Filler is a 43-ounce epoxy-based filler designed to thicken mixtures and fill gaps with precision. Renowned for its superior bonding strength and durability, it’s a trusted choice among professionals and DIYers alike, boasting a 4.7-star rating and consistent performance since 2013.



















| ASIN | B0006JJAU6 |
| Batteries Required? | No |
| Best Sellers Rank | #34,143 in Automotive ( See Top 100 in Automotive ) #139 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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