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 25790 1-3/4-Ounce Tube No.5 Pipe Thread Sealant

Rectorseal 25790 1-3/4-Ounce Tube No.5 Pipe Thread Sealant

Product ID: 262696784

Details

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

💧Water resistant, leak-proof hold

🔩Low friction for tighter joints

🛠️Soft-setting, slow drying sealant

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฿1175

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Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Seal like a pro, secure like a boss.

SAFE READY FAST - Seals instantly for immediate pressurization and leak prevention
EFFORTLESS APPLICATION - Soft setting and slow drying for precise, mess-free use
THREAD FRIENDLY FORMULA - Breaks out cleanly without damaging or seizing threads
INDUSTRY STANDARD RELIABILITY - Trusted formula that’s been the go-to sealant for decades
TIGHTEN WITHOUT TORQUE STRESS - Low friction allows stronger joints with less effort

Rectorseal 25790 No.5 Pipe Thread Sealant is a trusted, slow-drying paste designed for metal and PVC threads. Its low friction formula enables tighter joints with less torque, while providing immediate leak-proof sealing and easy disassembly without thread damage. Made in the USA, it’s the industry standard for reliable, water-resistant pipe sealing.

Specifications

ASIN	B0009PU9CK
Best Sellers Rank	#67,649 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #417 in Hardware Sealers
Brand Name	Rectorseal
Color	Yellow
Compatible Material	Metal
Customer Reviews	4.6 4.6 out of 5 stars (3,044)
EU Spare Part Availability Duration	2 Years
Global Trade Identification Number	00021449257909
Included Components	Unit^Instruction Guide
Item Dimensions	19 x 19 x 140 millimeters
Item Form	Paste
Item Type Name	Puttys & Compounds
Item Weight	1.6 Ounces
Manufacturer	The Rectorseal Corporation
Material Type	Plastic
Model	25790
Number of Items	1
Part Number	25790
Style Name	Compact
Surface Recommendation	Stainless Steel, PVC
UPC	021449257909
Unit Count	1.76 Grams
Water Resistance Level	Water Resistant

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