Does anyone know how to prevent the unused portion in the plastic can from drying up before I have a chance to use it?

Scrape all material off the container wall, then put a piece of Saran Wrap over the rest of the unused portion. Not on the top of the can, push it right on the material inside the container then put the cover back on. Works great!

Will it work to patch a chip/gouge on PVC trim?

I haven't done that personally, but I think that's exactly what this product for. It is essentially sandable filler for PVC (and other materials).

Hello, Yes; To test, I applied some of the platinum patch to a small canvas, allowed it to dry, (did not sand) then applied some black Gel Stain to the canvas, and it took really well. Good luck with your project!

Would this work to fill a crack on composite decking?

I would bet so. I have used it on everything else like wood, steel, hardy board, plastic, and concrete. It does come in a 16oz. Plastic bucket and its sandable too. If anything is going to work on composite decking its this product. Love this stuff !

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Description

🛠️ Weatherproof your repairs, rain or shine—because your home deserves the best!

HYDROPHOBIC TOUGHNESS - Waterproof surface that won’t swell, soften, blister, or break down over time.
24 HOUR RAIN READY FORMULA - Fully cures and withstands rain within just one day—no downtime, no delays.
SANDABLE PAINTABLE FINISH - Achieve a flawless, professional look that blends perfectly with your exterior.
VERSATILE MULTI MATERIAL BONDING - Seamlessly repairs fiber cement, vinyl, metal, wood, concrete, and more.
WEATHER MAX TECHNOLOGY FOR ULTIMATE DURABILITY - Engineered to resist cracking, crumbling, and discoloration under harsh weather.

DAP Weatherproof Patching Compound is a 16 oz acrylic latex filler featuring advanced WeatherMax Technology for superior UV and weather resistance. It cures fully within 24 hours, providing a waterproof, crack-resistant repair on a wide range of exterior materials including fiber cement, vinyl, metal, and wood. Sandable and paintable, it ensures a durable, professional finish that stands up to continuous exposure to the elements.

Specifications

Brand	DAP
Specific Uses For Product	Break Repair, Crack Repair, Dent Repair, Hole Repair
Material	Latex Polymer
Item Form	Paste
Special Feature	24 Hour Rain Ready, Crack Resistant, WeatherMax Technology
Color	White
Item Package Quantity	1
Package Information	Pail
Item Volume	16 Fluid Ounces
Full Cure Time	24 Hours
Water Resistance Level	Waterproof
Unit Count	16.0 Fluid Ounces
UPC	070798187405
Number of Pieces	1
Global Trade Identification Number	00070798187405
Manufacturer	DAP PRODUCTS INC.
Part Number	7079818740
Item Weight	1 pounds
Product Dimensions	3.88 x 3.88 x 4.25 inches
Item model number	7079818740
Is Discontinued By Manufacturer	No
Size	16 fl oz
Style	Tub
Shape	Triangle
Power Source	Power_source_type
Special Features	24 Hour Rain Ready, Crack Resistant, WeatherMax Technology
Included Components	1 Tub
Batteries Included?	No
Batteries Required?	No
Warranty Description	Warranty

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