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

💧Waterproof & water-resistant

⚙️Compatible with 8+ pipe materials

🛠️Soft-setting & slow drying

$U1772

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Sold byAmazon UruguayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Seal it right, seal it tight—never miss a drip!

POTABLE WATER SAFE - Certified safe for drinking water systems—trust your pipes with confidence.
COMPACT EFFICIENT - 1.75 oz tube packs powerful sealing in a portable, jobsite-friendly size.
SOFT SETTING FORMULA - Lubricates and protects threads without hardening, ensuring easy future disassembly.
INSTANT PRESSURE READY - Pressurize pipes up to 2" immediately after application for zero downtime.
UNIVERSAL PIPE COMPATIBILITY - Seals galvanized steel, brass, copper, PVC, stainless steel, and more with ease.

Rectorseal No. 5 Pipe Thread Sealant is a versatile, waterproof paste designed for reliable sealing of threaded pipes up to 2" diameter. Its soft-setting, slow-drying formula works across a broad range of materials including galvanized steel, brass, copper, PVC, and stainless steel. Safe for potable water, it allows immediate pressurization post-application, making it a trusted choice for professional plumbers and DIY enthusiasts alike.

Specifications

ASIN	B0009PU9CK
Best Sellers Rank	159,797 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,795 in Sealers
Brand	Rectorseal
Colour	Yellow
Compatible Material	Polyvinyl Chloride, Sta
Country Of Origin	USA
Customer Reviews	4.6 4.6 out of 5 stars (3,137)
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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