TechNews: LIQUISEAL Liquid Flashing Tips

Liquid flashing is a great solution for irregularly shaped and hard-to-flash penetrations. However, it can also be difficult to apply if not done correctly. Here are some simple tips and guidelines to utilize when working with LIQUISEAL® Liquid Flashing:

LIQUISEAL Liquid Flashing is an incredibly durable product, but it won't adhere properly if surfaces aren't prepared. Always use the tables in the Liquid Flashing Attachments Inspection & Substrate Preparation guide to determine what preparation is needed for a given substrate. Here are some examples for common surfaces:
  • Metal: Grind clean to expose bare steel or aluminum and create a rough surface before priming. Do not use a wire brush. Then apply LIQUISEAL Liquid Flashing Metal Primer and allow the primer to cure fully (this may take several hours).
  • EPDM: Scuff the membrane using 60 grit sandpaper and clean with Weathered Membrane Cleaner. After this is complete, apply LIQUISEAL Liquid Flashing Metal Primer and allow the primer to cure fully (this may take several hours).
  • TPO: Clean TPO with Weathered Membrane Cleaner - do not scuff with sandpaper as with other membranes - and apply Versico’s TPO Primer and allow to flash off.
  • PVC & KEE HP: Scuff the membrane surface using 60 grit sandpaper and clean with PVC cleaner. No primer is needed prior to application on PVC or KEE HP membranes.
Always pre-cut and dry-fit your reinforcing fleece before mixing the resin. LIQUISEAL Liquid Flashing Resin has a "pot-life" of about 20-30 minutes once mixed, so prioritizing time is key.

Take the time to watch this flashing video or this tie-in video, review the installation guide and Specification Supplement on the Versico website, and review details before using LIQUISEAL Liquid Flashing. A little bit of time spent reviewing these up-front can save considerable time on the roof and prevent the potential waste of product.

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