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 No. 5 25790 Pipe Thread Sealant, Lubricates & Protects Threads, Soft Setting, Slow Drying, & Permits Easy Breakout and Contains No Other Metals, 1.75 oz

RectorSeal No. 5 25790 Pipe Thread Sealant, Lubricates & Protects Threads, Soft Setting, Slow Drying, & Permits Easy Breakout and Contains No Other Metals, 1.75 oz

Product ID: 7377243

Details

Brand
Rectorseal
Item Weight
1.6 ounces
Item dimensions L x W x H
0.75 x 0.75 x
Material
Diacetone
Style
Squeeze tube

💧Metal-free, potable water safe

🔧Soft-set for easy thread breakout

🕰️Slow-drying for precision

R242

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Seal it right, break it easy — the pro’s secret weapon!

IMMEDIATE PRESSURE READY - Safe for natural gas and water lines up to 2" and 100 psi—no wait time needed.
SOFT SETTING LUBRICATION - Facilitates smooth assembly and disassembly without thread damage or galling.
TRUSTED INDUSTRY STANDARD - Preferred by HVAC, plumbing, and construction pros for decades of reliable performance.
PRECISION SLOW DRY FORMULA - Ensures perfect seal with controlled curing time for professional-grade results.
UNIVERSAL PIPE COMPATIBILITY - Works seamlessly on galvanized steel, brass, copper, stainless steel, PVC & more.

RectorSeal No. 5 is a premium, non-hardening pipe thread sealant designed for professional tradesmen. Its slow-drying, soft-set formula lubricates and protects threads across a wide range of pipe materials without metal content, ensuring easy disassembly and immediate pressurization up to 2" pipes at 100 psi. Ideal for potable water and natural gas lines, it’s the industry’s trusted go-to for durable, leak-proof connections.

Specifications

ASIN	B0009PU9CK
Best Sellers Rank	#3,305 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #10 in Industrial Thread Sealants
Brand Name	Rectorseal
Color	Yellow
Compatible Material	Metal
Customer Reviews	4.6 4.6 out of 5 stars (3,248)
EU Spare Part Availability Duration	2 years
Global Trade Identification Number	00021449257909
Included Components	Unit^Instruction Guide
Item Dimensions	0.75 x 0.75 x 5.5 inches
Item Form	Cream
Item Type Name	Puttys & Compounds
Item Weight	1.6 ounces
Manufacturer	The Rectorseal Corporation
Material Type	Diacetone Alcohol
Model	25790
Number of Items	1
Number of Packs	1
Part Number	25790
Style Name	Squeeze tube
Surface Recommendation	Steel
UPC	021449257909
Unit Count	1.75 Ounce
Warranty Description	Warranty
Water Resistance Level	Water Resistant

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