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Alex Fast Dry Acrylic Latex Caulk Plus Silicone vs Advanced Polymer Mortar Joint Sealant

Compare cure times, application limits, and real-conditions performance for DAP's Alex Fast Dry Acrylic Latex Caulk Plus Silicone and Quikrete's Advanced Polymer Mortar Joint Sealant. Adjust the sliders below for your actual temperature and humidity.

SpecificationPlus SiliconeJoint Sealant
ManufacturerDAPQuikrete
Full cure (lab)★24h192h
Open time★5 min30 min
Dry to touch★30 min60 min
Min application temp40°F40°F
Max application temp★100°F95°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 192h).
  • - Advanced Polymer Mortar Joint 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.

Advanced Polymer Mortar Joint Sealant has a 192h full cure time with a 30-minute open time.

These products serve different purposes — check each product's individual page for full substrate compatibility details before deciding.

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Alex Fast Dry Acrylic Latex Caulk Plus Silicone

DAP

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Advanced Polymer Mortar Joint Sealant

Quikrete

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

Advanced Polymer Mortar Joint 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.