We have 4 rows of std 6 x3 bdick, to surround fire pit frame?How much product do I need

If you use standard mortar to hold/secure the brick and only need ~1-2” deep mortar joint I think you can get by with 1 tub

Can I use it to tile the Woodburning fireplace heath?

No, ProSpec® Refractory Mortar is a specially-engineered blend of specific cements and aggregates giving the mortar unique heat-resistance and thermal characteristics for use in high-temperature applications such as inside fire pit rings, setting chimney clay flue liners, parging a smoke chimney chamber, and setting fire bricks. It is not to be used for tile setting mortar.

how many bricks can you lay with 10lb.

A 10 lb. pail of ProSpec Refractory Mortar will lay approximately 16-20 standard fire bricks at 1/8 in. (3 mm) joint thickness.

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$ProSpec Refractory Mortar (1)$

ProSpec Refractory Mortar (1)

Product ID: 469740935

Details

Material
Powder
Brand
Tenon
Style
Thermal
Item weight
10 Pounds
Item dimensions L x W x H
23.9 x 23.9 x

⏳1 hour workable time

🔥Heat resistant to 2550°F

🧱ASTM C199 certified strength

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P7301

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Description

🔥 Build with confidence—heatproof your space like a pro!

LONG WORKING WINDOW - Provides a full hour of workable time before setting, giving you precision and control.
EXTREME HEAT ENDURANCE - Withstands temperatures up to 2,550°F for 6+ hours, perfect for fireplaces and pizza ovens.
READY TO USE CONVENIENCE - Preblended formula—just add water and start your project instantly.
DURABLE WATER RESISTANT - Once cured, it’s acid resistant and water insoluble, ensuring lasting strength and reliability.
VERSATILE INDOOR OUTDOOR USE - Ideal for fire pits, chimneys, barbeques, and more—built to perform anywhere heat matters.

ProSpec Refractory Mortar is a premium, preblended thermal mortar engineered for high-temperature applications. Certified to ASTM C199 standards, it withstands extreme heat up to 2,550°F, offers a generous 1-hour working time, and cures into a durable, water-resistant, acid-proof bond ideal for fireplaces, chimneys, fire pits, and pizza ovens.

Specifications

ASIN	B07RC8D1WL
Brand	Tenon
Colour	White
Compatible Material	Wood
Customer Reviews	4.4 out of 5 stars 145 Reviews
Item Dimensions	23.9 x 23.9 x 18 centimetres
Item Form	Powder
Item Weight	4.54 kg
Item dimensions L x W x H	23.9 x 23.9 x 18 centimetres
Item height	7.1 inches
Item weight	4.54 kg
Manufacturer	TCC Materials
Material	Powder
Style	Thermal
Style Name	Thermal
Supported Standards	ASTM C199
UPC	037826209133
Unit Count	4731.76 millilitre
Water Resistance Level	Water Resistant
Water resistance level	Water Resistant

Reviews

K**K

Does exactly what it says on the tub

12.12.2022

E**K

Nice Product at a Good price !

11.07.2025

R**.

Fireplace fire bricks require maintenance.

27.06.2025

L**D

An easier to use, but slightly more expensive option

16.10.2025

R**.

Use the exact ratio of water to powder.

25.12.2025

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P7301

Duties & taxes included

In stock

Sold byAmazon BotswanaDelivered 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 Botswana.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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