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Product Description
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JointLoc™ uses an advanced formula of superior polymer technology. This industrial strength sealant provides superior adhesion even in wet and freezing conditions. Pro-Formula was specially formulated to bond without a primer to most construction materials including fiber-cement, EPS, wood, metal, vinyl, concrete, aluminum and brick. This permanent sealant remains flexible and blocks out moisture and air infiltration. Guaranteed to never crack, peel or separate, JointLoc outperforms polyurethanes, silicones, tripolymers and other sealants.
Basic Uses
Can be used on projections, pipes, vents, termination bars, field seams, butt joints, fish mouths, pitch pans, soil stacks and wall joints.
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• Bonds in Wet, Freezing Temperatures
• Superior Adhesion
• Water-based for Easy Clean Up
• Fills Gaps up to 1" Wide
• Paintable
• Compatible with EPS/XPS Foam
• Odor free with VOC Compliant
• 98% Solids
• USDA and FDA approved
• No Primer Required
• Interior or Exterior Use
• Lifetime Seal
• Made in the USA

A 10 fl oz cartridge will extrude approx. 30.6 ft of a 1/4” (6 mm) bead. A 10 fl oz cartridge will extrude approx. 13.6 ft of a 3/8” bead.
Available Sizes


10.1 oz







Customizable Sizes Available

We believe that Xtreme Weather Flashing tape is the best on the market. We believe it is better than all others flashing tapes including 3M 8067, DuPont Tyvek Tape, Nashua Select, Protecto Super Stick, Grace Vycor Plus, Protecto Wrap Bt-25XI, Henkel OSI TeQ Flash, Windowwrap PSX-20, MFM WindowWrap PowerBond, Henry Blueskin WB, barricade Ulti-Flash, Mpn 45804, Nashua Optiflash, Polyguard, York RESHS09, Shadowlastic, Baricade, Aquaseal Hyband, Adchem DrainFlash and Typar Flashing.