Can i put this below the bricks of an oven as insulation?

I understand your question, you're probably concerned that the HARD non insulatory fire brick might become to hot on whatever your forge is sitting on, (or you just want to capture and hold the heat from the heat source and bottom firebrick acting as a heatsink) No difference that when you go camping, you don't sleep on bare dirt, but on insulation like a sleeping bag mat. -But there's lots of factors like what properties does your forge floor have to begin with. Caesar gave you good info, let me just add to what he said about the insulation board being brittle, he's correct, my forge sits on a 24" x 12" inch insulating board, with a sheet metal cover over the insulation board, this is to protect the forge from chafing against the softer insulation board, both the board and sheet metal cover are firmly mechanically connected to the forge stand, no damage can happen and I hold more heat tover not using an insulating base.

If I cut off a piece, could I lay a stick of Japanese incense on it so the incense burns all the way?

Probably, is got a semi rough surface so it should allow it to burn and the temp wont hurt it but it's not aesthetically pleasing or durable for handling daily

Would this work as an annealing surface using a propane torch?

I wouldn't suggest it. It would work but It's very soft and brittle so it might not last long. It could work well if using a carbon plate on top of this to limit wear.

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BXI Inorganic Ceramic Fiber Thermal Insulation Board(2732F) - 12'' X 8'' X 0.8'', Pack of 1 - High Density - Flame Retardant, Heat Resistant, High Temperature Insulation

Product ID: 156191649

Details

Brand
BXI
Item Thickness
0.8 inches
Material
Ceramic
Product Dimensions
12"L x 8"W

📏High Density 600kg/m³

🔥Max Temp 2732°F (1500°C)

🛡️Class A1 Fire Resistant

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Description

🔥 Shield your craft with the ultimate heat armor!

CERTIFIED FIRE SAFETY - Class A1 flame retardant rating ensures top-tier protection and peace of mind in any environment.
SMOKE FREE ODORLESS - 100% inorganic composition means no toxic fumes or unpleasant odors, ideal for indoor and professional use.
EFFORTLESS CUSTOMIZATION - Easily cut and shape with simple tools, making it the go-to choice for tailored heat shields and insulation projects.
UNMATCHED HEAT ENDURANCE - Withstands scorching temperatures up to 2732°F, perfect for extreme industrial and creative heat applications.
PREMIUM HIGH DENSITY BUILD - 600kg/m³ density delivers superior rigidity and durability, engineered to last under thermal stress.

The BXI Inorganic Ceramic Fiber Thermal Insulation Board is a high-density, flame-retardant ceramic board designed for extreme heat resistance up to 2732°F (1500°C). Its Class A1 fire rating and inorganic, smoke-free composition make it a safe, durable, and odorless solution for professional-grade thermal insulation and heat shielding across industrial, artistic, and technical applications.

Specifications

ASIN	B07TG9H8DZ
Brand	BXI
Brand Name	BXI
Coverage	0.67 square_feet
Customer Reviews	4.3 out of 5 stars 460 Reviews
Item Dimensions L x W	12"L x 8"W
Item Thickness	0.8 inches
Manufacturer	BXI
Manufacturer Part Number	BX-FireBoard-2CM
Material	Ceramic
Material Type	Ceramic
Model Number	BX-FireBoard-2CM
Number of Items	1
Number of Packs	1
Product Dimensions	12"L x 8"W
Recommended Uses For Product	Heat shields and thermal insulation for various heating treatment equipments, fireplaces, boiler walls, blacksmith forges, welding, glass blowing, and other high temperature applications. Recommended Uses For Product Heat shields and thermal insulation for various heating treatment equipments, fireplaces, boiler walls, blacksmith forges, welding, glass blowing, and other high temperature applications. See more
UPC	681381972294

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$66.28

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.

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TrustScore 4.5 | 7,300+ reviews

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