is there a loctite that resists gasoline ?

Most of our Loctite anaerobic sealants and threadlockers will resist gasoline once they're fully cured. The right product will depend on your application requirements. Please call 1-800-LOCTITE (562-8483) to receive a product recommendation from one of our engineers.

How do I open the Loctite 243 bottle?

You simply twist the cap and it should open.

Is this good to use on battery cable bolts?

Yes this can be used on the threads. Loctite 243 is a plastic so keep it off the post where good electrically conductive contact is required. I am thinking a car battery here. If this is a different design and IF THIS THREADED ASSEMBLY REQUIRES ELECTRICALLY CONDUCTIVY DO NO USE OUR PLASTIC THREADLOCKER IT WILL INSULATE AND GENERATE RESISTANCE.

Can this still be effective on a bolt that is threaded, left to sit, and then threaded again to torque spec?

Left for set how long? When you remove the bolt, if it's still wet then yes, but I would wipe it off and reapply because I would want a thicker application for a tighter bond.

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243 Threadlocker for Automotive: Medium-Strength, Oil Tolerant, High-Temperature, Anaerobic, General Purpose | Blue, 6 ml Red Tube (PN: 1330799)

Product ID: 254870437

Details

Brand
LOCTITE
Item form
Liquid
Material
Aluminum Steel
Specific uses for product
Automotive

🔥High-temp tolerance up to ~360°C

🔧Medium-strength bond

🛢️Oil tolerant adhesion

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Description

🔩 Lock it tight, service it right — the pro’s choice for unstoppable threads!

QUICK SET LONG LASTING - Cures in 10 minutes, fully locked in 24 hours for fast, reliable maintenance.
VERSATILE FIT FOR EVERY BOLT - Ideal for fasteners from 6mm to 20mm, perfect for nuts, bolts, calipers, and pulleys.
SERVICE FRIENDLY REMOVABILITY - Medium strength bond allows easy disassembly with standard hand tools—no damage, no hassle.
UNSHAKABLE HOLD ON ALL METALS - Works flawlessly on stainless steel, aluminum, plated surfaces—even with oil contamination.
TRUSTED BY PROS SPECIFIED BY OE MS - Engineered and lab-tested for professional automotive and racing applications.

LOCTITE 243 is a medium-strength, blue threadlocker designed for automotive and general metal fasteners between 6mm and 20mm. It offers superior oil tolerance and high-temperature resistance up to approximately 360°C, ensuring reliable adhesion on stainless steel, aluminum, and plated surfaces. Engineered to cure quickly within 10 minutes and fully in 24 hours, it provides a durable yet removable bond that can be undone with hand tools, making it ideal for maintenance-heavy applications. Trusted by OEMs and professional race teams alike, LOCTITE 243 delivers dependable performance where vibration and shock threaten fastener integrity.

Specifications

ASIN	B004L439FE
Best Sellers Rank	#8,677 in Automotive ( See Top 100 in Automotive ) #50 in Automotive Fillers, Adhesives & Sealants
Brand Name	LOCTITE
Color	Blue
Compatible Material	Metal
Container Type	Tube
Customer Reviews	4.8 4.8 out of 5 stars (3,136)
Full Cure Time	24 Hours
Global Trade Identification Number	00079340439078
Included Components	(1) 243 Threadlocker for Automotive, Blue, 6-ml
Item Form	Liquid
Item Package Quantity	1
Item Type Name	automotive-thread-lock-sealers
Manufacturer	Loctite
Material Type	Aluminum,Stainless Steel
Model	1330799
Number of Pieces	1
Other Special Features of the Product	Oil Tolerant, Medium Strength Bond, Removable with Hand Tools, Improved Adhesion on Various Metals and Passive Substrates
Part Interchange Info	1330799
Part Number	1330799
Specific Uses For Product	Automotive
UPC	079340439078
Viscosity Level	High
Volume	6 Milliliters
Water Resistance Level	Water Resistant

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In stock

Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Thailand.

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