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: 457564577

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🔇Effective sound deadening

🚗Pro-grade automotive protection

🛡️Max durability rubberized seal

Description

🛠️ Seal it, shield it, silence it — the ultimate undercoating upgrade!

MULTI FUNCTIONAL USE - Seals, insulates, and soundproofs—ideal for gutters, roofs, drains, and pruning
UNMATCHED DURABILITY - Rubberized formula ensures long-lasting protection against rust and wear
PROFESSIONAL STRENGTH - Industrial-grade coating thickness for superior coverage and resilience
VERSATILE APPLICATION - Perfect for automotive frames, rocker panels, wheel wells, and even home sealing tasks
EASY AEROSOL APPLICATION - Convenient 16 oz. spray can for precise, mess-free coverage every time

Permatex 81833 Heavy Duty Rubberized Undercoating is a professional-strength, 16 oz. aerosol spray designed to protect automotive and home surfaces with a durable, flexible rubberized coating. It seals, insulates, and deadens sound, making it ideal for frames, panels, gutters, and more.

Specifications

Manufacturer	Permatex
Brand	Permatex
Model	81833
Product Dimensions	6.68 x 6.68 x 23.83 cm; 226.8 g
Item model number	81833
Manufacturer Part Number	81833
OEM Part Number	81833
Item Weight	227 g

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