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Alex Fast Dry Acrylic Latex Caulk Plus Silicone vs LIFETIME Ultra 230 Premium Elastomeric Acrylic Sealant

Compare cure times, application limits, and real-conditions performance for DAP's Alex Fast Dry Acrylic Latex Caulk Plus Silicone and Red Devil's LIFETIME Ultra 230 Premium Elastomeric Acrylic Sealant. Adjust the sliders below for your actual temperature and humidity.

SpecificationPlus SiliconeAcrylic Sealant
ManufacturerDAPRed Devil
Full cure (lab)★24h72h
Open time★5 min10 min
Dry to touch★30 min60 min
Min application temp40°F40°F
Max application temp★100°F90°F
Safety flagsNoneNone

Compare at Your Conditions

70°F
10°F120°F
50%
0%100%

Which should you choose for cure time?

  • - Alex Fast Dry Acrylic Latex Caulk Plus Silicone has the faster baseline full cure (24h vs 72h).
  • - LIFETIME Ultra 230 Premium Elastomeric Acrylic Sealant gives more working time before assembly pressure or tooling becomes urgent.

Alex Fast Dry Acrylic Latex Caulk Plus Silicone has a 24h full cure time with a 5-minute open time.

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

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More caulk & sealant cure calculators

Alex Fast Dry Acrylic Latex Caulk Plus Silicone

DAP

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LIFETIME Ultra 230 Premium Elastomeric Acrylic Sealant

Red Devil

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Alex Fast Dry Acrylic Latex Caulk Plus Silicone data from manufacturer TDS · last verified Jun 2026.

LIFETIME Ultra 230 Premium Elastomeric Acrylic 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.