Is this recommended for gas fittings on my Blackstone Griddle?

I would use this on propane gas connections

What’s the difference between application temp and performance temp? I’d need to use this for locking bolts that get up to 210 Fahrenheit.

Yes that would be appropriate. It seals items that will get into the higher range of temps

when reapplying the same sealant, is it necessary to first clean off the sealant from last time?

I would clean off the sealant before applying new just because the old sealant may have become contaminated. If it has some grit in it, it could affect the seal. Maybe overkill, but I don't like to second guess seals on propane lines.

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Rectorseal 1.75 Oz No. 5 Pipe Thread Sealant 25790

Rectorseal 1.75 Oz No. 5 Pipe Thread Sealant 25790

Product ID: 58798302

Details

Brand
Rectorseal
Item dimensions L x W x H
19 x 19 x 140
Item weight
1.6 Ounces
Material
Plastic
Style
Compact

⚡Fast, reliable first-try sealing

💧Waterproof seal

🛠️Compatible with PVC & stainless steel

Description

🔧 Seal it right, seal it tight – never leak in sight!

TRUSTED BY THOUSANDS - Rated 4.6 stars by over 3,000 professionals who rely on it daily.
COMPACT LIGHTWEIGHT - Easy to handle and store with a sleek 1.6 oz compact design.
WATER RESISTANT DURABILITY - Ensures long-lasting, waterproof seals that stand up to pressure and moisture.
LEAKPROOF CONFIDENCE EVERY TIME - Seals pipes on the first try, eliminating costly rework and downtime.
VERSATILE MATERIAL COMPATIBILITY - Works seamlessly with PVC and stainless steel for all your plumbing needs.

Rectorseal No. 5 Pipe Thread Sealant is a compact, waterproof paste designed for reliable, first-try sealing on PVC and stainless steel pipes. Trusted by thousands with a 4.6-star rating, it offers durable, water-resistant protection in a lightweight 1.6 oz package, making it an essential tool for professional-grade plumbing.

Specifications

ASIN	B0009PU9CK
Best Sellers Rank	476,734 in DIY & Tools ( See Top 100 in DIY & Tools ) 4,533 in Sealers
Brand	Rectorseal
Colour	Yellow
Compatible Material	Polyvinyl Chloride, Sta
Customer Reviews	4.6 4.6 out of 5 stars (3,134)
EU Spare Part Availability Duration	2 Years
Global Trade Identification Number	00021449257909
Item Dimensions	19 x 19 x 140 millimetres
Item Form	Paste
Item Weight	1.6 Ounces
Manufacturer	Rectorseal Corporation
Manufacturer Part Number	25790
Material	Plastic
Model Number	25790
Number of Items	1
Number of Packs	1
Style Name	Compact
Surface Recommendation	Stainless Steel, PVC
UPC	021449257909
Unit Count	49.6117 gram
Water Resistance Level	Water Resistant

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