GAUDON alternative to DAP Alex Plus for window, door and trim joints

If you currently run DAP Alex Plus on window, door and trim joints, this page sets out the GAUDON option, what the published specifications say, and where the two products differ. It is written to help you decide, not to make a claim we can't support.

Recommended GAUDON alternative

GAUDON B1 Fast-Dry Paintable Acrylic Latex Caulk

Fast-Dry Paintable Acrylic Latex Caulk. One component, water based acrylic latex caulk that dries fast and is paint ready in about 30 minutes. Built for trim, molding, baseboards, window and door frames, and drywall joints where a smooth, clean finish matters. Low odor, easy water cleanup, flexible and crack resistant.

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Specification comparison

ChemistrySiliconized acrylic polymer (base polymer), filler calcium carbonateAcrylic latex, Water-Based

ASTM C920 statusNo ASTM C920 class statedMeets ASTM C834-17(2023) as Type OP, Grade 0°C

Movement classNot statedNot published in the GAUDON TDS

Interior / exteriorInterior and exteriorInterior and protected exterior use

PaintabilityNot statedPaintable, smooth finish

UV / weather resistanceMarketing claim only, no test methodNo wash-out, slump, cracking or discoloration after 100 h Xenon weathering

VOC contentNot stated68.6 g/L, Rule 1168 compliant

Application temperature40F to 100F (C not printed)40°F to 100°F (4°C to 38°C)

Service temperature-20F to 180F (C not printed)0°F to 180°F (-18°C to 82°C)

Cure characteristicsTack Free Time 30 minutes; Full Dry Through 24 hours24 to 48 hours

Packaging size10.1 fl oz (300 mL) cartridge and 5.5 fl oz (162 mL) squeeze tube10.1 fl oz

Available colorsWhite onlyWhite, Black, Gray

Typical applicationsWindow frames; door frames; baseboards; moldingInterior Finishing, Trim, Baseboards

Key differences

Chemistry differs: DAP Alex Plus is a siliconized acrylic polymer (base polymer), filler calcium carbonate, B1 is an acrylic latex caulk. Confirm paint and substrate requirements before switching.
B1 is paintable: paintable, smooth finish. Where the joint is an exterior weatherseal rather than a painted one, look at GAUDON G2 or G3 instead.
Case pricing is quoted directly. Send a quote request with the quantity you need and we price it for you, then orders go by email or phone.

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B1 Technical Data Sheet (TDS v2.0 · July 2026)B1 Safety Data Sheet

Competitor names and specifications are the property of their respective manufacturers and are referenced for comparison only. Recommendations are based on published product information. Always review the applicable GAUDON TDS and confirm project-specific compatibility before use.