Would this work for a DIY hot tub cover? It would have to be UV and light chlorine resistant.

I used this item for undercoating of my car.

Would this stuff work for a leak in a plastic pond liner? It has several cracks.

not even a little, it might work with conjunction with a patch but just applied to a crack or hole otherwise, the answer either way is no.

Any suggestion for faster drying?

Try using a box fan or similar.

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81833 Heavy Duty Rubberized Undercoating, 16 oz. net Aerosol Can

Product ID: 8988295

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🔇Effective sound deadening

🚗Professional-grade automotive protection

🛡️Maximum durability rubberized seal

Description

🛠️ Shield your ride and space with pro-grade rubberized power!

MULTI PURPOSE POWER - Also ideal for gutters, roofs, drain systems, and sound deadening tasks
UNMATCHED DURABILITY - Rubberized formula ensures long-lasting protection against rust and wear
VERSATILE APPLICATION - Perfect for automotive frames, rocker panels, wheel wells, and even home repairs
SUPERIOR SEAL INSULATION - Seals and insulates to protect metal surfaces from moisture and corrosion
PROFESSIONAL STRENGTH COVERAGE - Thick coating delivers excellent coverage for heavy-duty use

Permatex 81833 Heavy Duty Rubberized Undercoating is a 16 oz aerosol can featuring a professional-strength, rubberized formula designed to seal, protect, and insulate automotive and home surfaces. Its thick, flexible coating offers superior durability and sound deadening, making it ideal for frames, rocker panels, wheel wells, and various sealing applications.

Specifications

Manufacturer	Permatex
Brand	Permatex
Model	81833
Item Weight	8 ounces
Product Dimensions	2.63 x 2.63 x 9.38 inches
Item model number	81833
Is Discontinued By Manufacturer	No
Exterior	Machined
Manufacturer Part Number	81833
OEM Part Number	81833

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