Would this work for ATF transmission fluid fittings?

It will work on a wide variety of fittings and applications but is designed for use on NPT (pipe) threads, not machined fittings like flare or compression ferrule types; if those are leaking, they need to be replaced.

Will it cause damage to Transmission if used on drain plugs ??

Absolutely not. Used this on T-56 6 Speed fill hole bolt with zero issues

Can this be used on polypropylene fittings with UNF threads?

You can use this on anything that’s threaded. Just allow it fully harden and double check for leaks once it does.

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Permatex 57535 35 mL Seal and Lock Thread Compound, 1.26 fl. oz

Permatex 57535 35 mL Seal and Lock Thread Compound, 1.26 fl. oz

Product ID: 628449451

Details

Brand
Permatex
Item dimensions L x W x H
20.3 x 12.7 x
Item weight
0.15 Pounds
Material
Plastic
Style
Seal and Lock

💧Seals leaks up to 1000 PSI

🔒Locks threads tight

🔥Resists -60°F to 300°F temps

฿5103

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Description

🔧 Seal it. Lock it. Forget leaks forever.

UNMATCHED SEAL HOLD - Combines thread sealant and blue thread locker for leak-proof, vibration-resistant connections.
PRESSURE PROOF PERFORMANCE - Secures fittings with airtight, watertight seals up to 1000 PSI—no leaks, no worries.
CLEAN TAPE FREE APPLICATION - Say goodbye to messy pipe tape and dope; enjoy smooth, professional-grade sealing every time.
EXTREME TEMPERATURE DURABILITY - Operates flawlessly from freezing -60°F to scorching 300°F without cracking or losing grip.
RAPID CURE HEAVY DUTY STRENGTH - Fast curing formula withstands pressures up to 10,000 PSI—built for the toughest jobs.

Permatex 57535 Seal and Lock Thread Compound is a high-performance sealant that combines the sealing power of a thread sealant with the strength of a blue thread locker. It provides airtight, watertight seals up to 1000 PSI and rapidly cures to withstand pressures up to 10,000 PSI. Temperature resistant from -60°F to 300°F, it protects metal tapered pipe threads from rust, corrosion, and wear. Ideal for professional and DIY use, it replaces traditional pipe tape and dope with a cleaner, faster application for durable, leak-proof connections.

Specifications

ASIN	B0787N1LTY
Best Sellers Rank	#86,577 in Automotive ( See Top 100 in Automotive ) #312 in Automotive Fillers, Adhesives & Sealants
Department	unisex-adult
Item model number	57535
Manufacturer	Permatex
Product Dimensions	20.32 x 12.7 x 1.27 cm; 68.04 g

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฿5103

Duties & taxes included

In stock

Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Thailand.

Secure transaction

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