Question 1

Does this stuff seal pneumatic (800 psi) threads on an and npt fittings.

Accepted Answer

I’ve not used it for your application however, her is the product discription for reference

Formulated for metal, tapered ppe thread fittings. Protects threaded areas from rust and corrosion. Uses: head bolts, oil senders, oil and coolant lines, fuel fittings.
Features & details
Cures rapidly to withstand 10,000 PSI
Perfect as a replacement for Vibra-Seal pre-coated parts
Prevents galling and protects mated threaded areas from rust and corrosion

Question 2

Can this be used on plastic pipe

Accepted Answer

Here is a copy and paste of the product description. "Formulated for metal, tapered ppe thread fittings. Protects threaded areas from rust and corrosion. Uses: head bolts, oil senders, oil and coolant lines, fuel fittings". Hope this helps.

Question 3

What's the difference between this & Special Edition? I need 2 use it 2 seal inline fuel filter thread brass fitting 4 a motorcycle tank 2 carb.

Accepted Answer

I tried a number of things to seal  a brass tee into a motorcycle oil pressure outlet. Nothing worked 'til I tried this stuff. Be sure to clean the threads well beforehand.  If the stuff is rated for fuel, I'm sure it'll work for your application. It's good stuff.

Question 4

What's the difference between this & Special Edition? I need 2 use it 2 seal inline fuel filter thread brass fitting 4 a motorcycle tank 2 carb.

Accepted Answer

The special edition is no doubt like many other products listed on Amazon a seller attempting to use the false label of a "special edition" to lure buyers to buy from them at a higher price, without prime shipping and more often than not slower shipping. I am willing to bet if you contact the maker of the product that they do not produce a "special edition".

ASIN	B000FW7VHI
Amazon Bestseller	#156,053 in Automotive ( See Top 100 in Automotive ) #1,039 in Oil System Tools
Brand	Permatex
Customer Reviews	4.7 4.7 out of 5 stars (560)
Date First Available	January 19, 2014
Is Discontinued By Manufacturer	No
Item Dimensions L x W x H	20.3 x 7.6 x 5.1 cm
Item Weight	49.9 g
Item model number	56521
Manufacturer	パーマテックス(Permatex)
Model	PTX56521
OEM Part Number	56521
Product Dimensions	20.32 x 7.62 x 5.08 cm; 49.9 g
Warranty	Due to product defects

Permatex General Fitting Thread Sealant, White, 50ml [PTX56521]

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