I'm looking to attach some tin tiles to sheetrock. Think this will work?

I think that you would have better results using the following item: "Dap 27450 Beats The Nail All-Purpose Construction Adhesive 10.3-Ounce". Make sure that you remove any oily film that may be on the tin before applying the construction adhesive.

Is the item waterproof? Can it be used outside for repairs in all weather conditions?

Yes it is waterproof. I used it around my flue pipe on the roof. Stuff works great. I would do 2 layers instead of one.

Has anyone had success with this product without fire curing? Manufacturer says it must be fire cured but I need a fire seal of 2000F+ but can't fire

I used this to seal the storm collar and flashing around my class A chimney penetrating through my roof. That installation definitely was not fire-cured, and has held up extremely well. It does cure very hard, but has performed well for my application. I check, the seals when I clean my chimney every year, and 11-years in all is still well.

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Description

🔥 Seal the heat, stop the threat — fireproof your space like a pro!

CLEAN CONVENIENT - Low odor, interior-safe, and cleans up easily with just water—no harsh chemicals needed.
ENERGY SAVING SEAL - Stops air leaks effectively, enhancing your home's energy efficiency and comfort.
HEATPROOF DURABILITY - Endures scorching temperatures up to 2000°F, perfect for fireplaces and wood stoves.
ULTIMATE FIRE DEFENSE - Certified ASTM E136 sealant for unbeatable fire resistance in wood-frame construction.
EFFORTLESS APPLICATION - Smooth paste formula that sets rock hard once fired, sealing cracks and joints flawlessly.

DAP High Heat Fire Resistant Mortar is a black silicate cement paste designed for interior use in wood-frame construction and fireplaces. It meets ASTM E136 standards, withstands temperatures up to 2000°F, and sets rock hard when fired. This low-odor, waterproof sealant is easy to apply and clean up with water, making it ideal for patching firebrick, sealing gaps, and improving energy efficiency by stopping air leaks.

Specifications

Color	Black
Brand	DAP
Item Weight	1.3 Pounds
Liquid Volume	10
Full Cure Time	2 Hours
Item Form	Paste
Maximum Gap Fill	0.06 Inches
Surface Recommendation	Interior
Temperature Range	40 to 100 Degrees Fahrenheit
Water Resistance Level	Waterproof
Number of Items	1
Manufacturer	DAP
UPC	070798188549
Global Trade Identification Number	00070798188549
Unit Count	10.1 Ounce
Material	Silicate Cement
Part Number	7079818854
Item Weight	1.27 pounds
Product Dimensions	11.5 x 2 x 2 inches
Item model number	7079818854
Is Discontinued By Manufacturer	No
Size	10 oz
Style	Tube
Shape	Shape
Thickness	1 Inches
Item Package Quantity	1
Included Components	1 Tube
Batteries Included?	No
Batteries Required?	No
Warranty Description	Warranty

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