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LIFETIME Ultra 230 Premium Elastomeric Acrylic Sealant vs Alex Flex Premium Molding & Trim Sealant

Compare cure times, application limits, and real-conditions performance for Red Devil's LIFETIME Ultra 230 Premium Elastomeric Acrylic Sealant and DAP's Alex Flex Premium Molding & Trim Sealant. Adjust the sliders below for your actual temperature and humidity.

SpecificationAcrylic SealantTrim Sealant
ManufacturerRed DevilDAP
Full cure (lab)72h★24h
Open time10 min10 min
Dry to touch60 min★30 min
Min application temp40°F40°F
Max application temp90°F★100°F
Safety flagsNoneNone

Compare at Your Conditions

70°F
10°F120°F
50%
0%100%

Which should you choose for cure time?

  • - Alex Flex Premium Molding & Trim Sealant has the faster baseline full cure (24h vs 72h).

LIFETIME Ultra 230 Premium Elastomeric Acrylic Sealant has a 72h full cure time with a 10-minute open time.

Alex Flex Premium Molding & Trim Sealant has a 24h full cure time with a 10-minute open time.

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LIFETIME Ultra 230 Premium Elastomeric Acrylic Sealant

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Alex Flex Premium Molding & Trim Sealant

DAP

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LIFETIME Ultra 230 Premium Elastomeric Acrylic Sealant data from manufacturer TDS · last verified Jun 2026.

Alex Flex Premium Molding & Trim Sealant data from manufacturer TDS · last verified Jun 2026.

Important: Results are estimates only. Always follow manufacturer instructions. Not suitable for structural, load-bearing, or safety-critical applications.