Evercoat BPO Slow Cream Hardener, 2.75 Oz, 100364

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Product Overview

Evercoat BPO Slow Cream Hardener, 2.75 Oz (100364) helps eliminate rushed repairs and improve productivity by increasing working and dry-to-sand times.

This slow hardener is recommended if additional working is required due to high temperatures or for larger repairs.

Evercoat Slow BPO Cream Hardener extends the working time and dry-to-sand times for the following EVERCOAT fillers and putties:

Rage® Optex™
Rage® Ultra
Commercial Ultra™
Commercial Optex®
Rage® Ultra Xtra
Metal Glaze Optex
Metal Glaze Ultra™
Z-Grip® Optex®
Lite Weight® Optex®
Everglass®
Fiber Tech®
Light Speed™ Optex® Premium Filler

Note: Evercoat Slow BPO (Benzoyl Peroxide) Cream Hardener part number 100364 is not compatible with #864 / #865 SMC Resin or products not listed above, and therefore not to be used with unlisted products or competitive products.

The container size is 2.75 ounces (78 grams) in a tube with screw on cap.

Features and Benefits

Helps eliminate rushed repairs by increasing working times
Recommended if additional working is required due to high temperatures or for larger repairs
Compatible with many EVERCOAT fillers and putties (see list of compatible items above)

Mixing

Measure hardener 2% by weight (add a ribbon of cream hardener from edge to edge across the center of a 4” diameter puddle)
Puddles larger than 4” (10 cm) in diameter will require additional hardener
Mix thoroughly until a uniform color is achieved

Technical Specs

Traditional vs. Slow BPO Work & Dry-to-Sand Times (~95°F / 35°C)

Product	Traditional BPO Work Time	Slow BPO Work Time	Traditional BPO Dry-to-Sand	Slow BPO Dry-to-Sand
Rage Ultra	2 min	7 min	16 min	17 min
Rage Optex	2 min	7 min	16 min	17 min
Light Speed Optex Premium Filler	2.5 min	7 min	18 min (no UV), 3 min (UV)	20 min (no UV), 3 min (UV)
Commercial Ultra	5 min	9.5 min	20 min	25 min
Commercial Optex	5 min	9.5 min	20 min	25 min
Metal Glaze Ultra	1:5 min	4.5 min	10 min	13 min
Metal Glaze Ultra Optex	1:5 min	4.5 min	10 min	13 min
Rage Ultra Xtra	21 min	27 min	90 min	120 min
Z-Grip Optex	2.25 min	5 min	13 min	17 min
Z-Grip	2.25 min	5 min	13 min	17 min
Lite Weight Optex	2:5 min	4.5 min	12 min	15 min
Lite Weight	2:5 min	4.5 min	12 min	15 min
Everglass	2.7 min	4.5 min	12 min	15 min
Fiber Tech	3 min	4.75 min	10.5 min	15 min
Poly-Flex	2:25 min	3.75 min	15 min	20 min

Information in this chart is for reference only and may be incomplete or subject to change. Work times and dry-to-sand times can vary based on environmental conditions and product batch. Users should verify all specifications with Evercoat’s current technical data sheet before use.

Caution: Evercoat Slow BPO Cream Hardener (#100364) is not compatible with #864 / #865 SMC Resin.

Videos

SMS Expert Notes

Evercoat Slow BPO Cream Hardener (100364) is a valuable tool for technicians working in high‑temperature environments or performing larger, more complex repairs. By extending both working time and dry‑to‑sand time, it helps prevent rushed application, reduces the risk of pinholes or improper curing, and improves overall repair quality.

This slow hardener is especially useful when working with premium Evercoat fillers such as Rage Ultra, Rage Optex, Commercial Ultra, Metal Glaze Ultra, Everglass, and Fiber Tech. When temperatures rise or repair areas increase in size, Slow BPO provides the additional open time needed to properly shape, spread, and refine the repair without sacrificing strength or long‑term durability.

For best results, always maintain the correct 2% hardener ratio and mix thoroughly until a uniform color is achieved. Slow BPO should only be used with compatible Evercoat products and never with SMC resins (#864 / #865) or competitive fillers that require different catalyst chemistries.

About SMSDistributors

SMSDistributors.com supplies professional‑grade Evercoat, Parker LORD Fusor®, and Indasa Abrasives products to collision centers, OEM repair facilities, restoration shops, and industrial users nationwide. We provide fast shipping, expert product knowledge, and deep experience across all major automotive refinishing brands.

Our team specializes in high‑performance surface preparation products — including fillers, putties, primers, adhesives, and abrasives — ensuring technicians have the right materials for every stage of repair, fabrication, or finishing.