Would this be a food grade silicone plumbers grease appropriate for lubricating threads of a brass kdf shower filter to allow easier opening?

Yes. That is exactly what this is for.

Is there a shelf-life for this product and is it marked on the tube?

From Haynes: Haynes Silicone Grease is a sanitary grease complies with all regulatory agencies. Haynes Silicone Grease is specifically formulated with the highest quality silicone fluid and additives to meet the unique demands placed on all types of food processing equipment. This grease will prevent valves and o-rings from sticking in both high temperature and low temperature (freezing) conditions. Haynes Silicone Grease can be used in high vacuum or pressure systems to seal synthetic rubber and plastic parts that come in contact with metal. The grease is inert and will resist many chemicals. It can be effectively used on EPDM seals where grease compatibility is a concern. It also can be used as a dielectric grease. Haynes Silicone Grease is NSF rated H-1, Kosher Certified, Halal Certified, and made from ingredients The important part is " The Grease is Inert" providing you keep it in the container and clean from contamination the shelf life should be nigh indefinite.

Can i use this on a squeaky hinge of a microwave?

You can use this product on anything it is completely food safe and yes it will help squeaky doors I use this on my water filters to keep them from getting stuck so they're not so hard to take apart when it's time to change them

Can this be used for a squeaky microwave oven door hinge? GE advised I needed a non-flammable, non-spray, food grade silicone grease.

Sounds like this is exactly what you need then!

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Haynes Silicone Grease, Food Grade Sanitary Lubricant, Machine Lube, Prevent Valves and O-Rings from Sticking, 1-4oz Tube Silicone Grease HAYSG 4OZ TUBE Clear, 4-oz

Product ID: 6135927

Details

Brand
Haynes
Item Weight
22.68 g
Liquid Volume
0.1 liters
Material
Silicone
Package Information
Tube

🔥High-temp & low-temp resistant

⚙️4 oz precision tube

🛡️Food-grade FDA compliant

$31.74

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Description

🛠️ Keep your machines running smooth, safe, and slick—because sticking is so last season!

PROUDLY MADE IN THE USA - Crafted with FDA-approved ingredients and backed by a 1-year warranty for peace of mind.
VERSATILE SEAL COMPATIBILITY - Perfect for EPDM seals, synthetic rubber, and plastics—your all-in-one lubrication solution.
TEMPERATURE PROOF RELIABILITY - Prevents valves and O-rings from sticking in extreme heat or cold—no downtime, no hassle.
DIELECTRIC CHEMICAL RESISTANT - Acts as a dielectric grease and resists harsh chemicals, ensuring long-lasting protection.
UNMATCHED FOOD SAFE PERFORMANCE - Formulated with premium silicone fluids to meet rigorous food processing standards.

Haynes Silicone Grease is a 4-ounce, food-grade, dielectric lubricant designed to prevent sticking and wear on valves, O-rings, and seals in food processing and industrial equipment. It withstands extreme temperatures, is compatible with EPDM and synthetic materials, resists chemicals, and is manufactured in the USA with FDA-compliant ingredients.

Specifications

ASIN	B00CI88AZ4
Best Sellers Rank	#41,417 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #237 in Industrial Lubricants
Brand Name	Haynes
Compatible Material	Epdm Seals, Synthetic Rubber, Plastic Parts
Container Type	Tube
Customer Reviews	4.8 4.8 out of 5 stars (624)
Included Components	Silicone Grease
Item Form	Grease
Item Type Name	Silicone Grease
Item Weight	22.68 g
Liquid Volume	0.1 liters
Manufacturer	Haynes
Material	Silicone
Model Number	HAYSG_4OZ_TUBE
Number of Items	1
Number of Packs	1
Part Number	1000S
Recommended Uses For Product	Lubricant
UPC	194773148677
Unit Count	4 Ounce
Warranty Description	1 YR

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$31.74

Duties & taxes included

In stock

Sold byAmazon USADelivered 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 USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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