How strong is this glue? Can it be used to reapir a crack in 1 galon water reservior?

I would think so, I used it on a conical fermenter for my beer brewing and its worked fine for a few years now. No major pressure on it, just 7 gallons of product.

Can it be applied to a jar to store food in?

I'm not sure, I can tell you its ratted Food Safe. I used it to seal a crack in a conical fermentor I use for home brewed beer and cider. worked fine and left no taste that I could tell.

(white) what is the texture of the surface after cured? smooth? gritty? matte? shiny? how can it be made as smooth as possible?

To make as smooth as possible: after you apply the stuff, spray some water with soap (detergent/shampoo works) and smooth it out with your fingers... this method works great for corners and joints where a bead is required.... will probably make a not so great job on a flat surface :-)

is it dishwasher safe?

The package says its temperature range is -62ºF to 350ºF. I don't know how hot a dishwasher gets, but it might be ok on the top shelf.

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Food Grade NSF FDA RTV Silicone Sealant Adhesive White 2.8oz

Food Grade NSF FDA RTV Silicone Sealant Adhesive White 2.8oz

Product ID: 269200309

Details

Brand
Sil-Bond
Item form
Liquid
Material
Silicone
Specific uses for product
Repair

💧100% waterproof & moisture-proof

🔥Temp resistant up to 400°F

🛠️NSF & FDA food-grade certified

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804837₫

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Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛡️ Seal smart, live fearless—your ultimate food-grade silicone shield!

DURABILITY THAT LASTS - Won't crack, shrink, or degrade—resists moisture, ozone, vibration, and weathering.
READY TO USE PRECISION - Convenient 2.8oz squeeze tube with removable nozzle for mess-free, exact application.
UNMATCHED HEAT ENDURANCE - Withstands extreme temps from 62°F to 400°F for relentless performance.
VERSATILE SURFACE BONDING - Bonds effortlessly to metal, glass, plastic, ceramic, rubber, and more—no primer needed.
FOOD SAFE SEAL OF APPROVAL - NSF, ANSI 51, and USDA certified—perfect for kitchen and food-contact repairs.

Sil-Bond 4500 is a premium 100% RTV silicone adhesive sealant in a 2.8oz tube, NSF and FDA approved for food safety. Engineered to resist extreme temperatures (up to 400°F), moisture, ozone, and vibration, it bonds strongly to a wide range of materials without priming. Ideal for professional-grade kitchen, marine, and automotive sealing tasks, it cures fully in 24 hours and maintains flexibility without cracking or brittleness.

Specifications

ASIN	B01F9HCISU
Best Sellers Rank	#12,436 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #31 in Silicone Sealers
Brand Name	Sil-Bond
Color	white
Compatible Material	Ceramic, Glass, Metal, Plastic, Porcelain, Rubber
Container Type	Tube
Customer Reviews	5.0 5.0 out of 5 stars (1)
EU Spare Part Availability Duration	2 Years
Full Cure Time	24 Hours
Item Form	Liquid
Item Package Quantity	1
Item Weight	0.01 Ounces
Manufacturer	Sil-Bond
Material Type	Silicone
Model	Sil Bond 4500
Number of Pieces	1
Other Special Features of the Product	Extreme Temperature Resistance, Moisture Resistance, Ozone Resistance, Vibration Resistance, Weathering Resistance
Part Number	43338-2287
Specific Uses For Product	Repair
Unit Count	1.00 Count
Viscosity Level	Medium to High
Volume	2.8 Fluid Ounces
Water Resistance Level	Water Resistant

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