Propane Tank Forge Build: DIY using KAOWOOL, Refractory, Rigidizer

This is my first attempt at building a forge. I used Will Matthew's excellent video • Building a Blacksmithi... as a guide along with the iforgeiron.com forum. www.iforgeiron.com/topic/6128... If you have a question, just search the question and add iforgeiron.com and you will most likely find your answer.
Warning: This is a complicated build and there can be many hazards. Please understand the proper use of PPE and MSDS to avoid injury or death. The chemicals used in this project can cause permanent damage.
Burner:
(found most stuff at Home Depot, 1/8 ordered on amazon, do not use galvanized parts)
1 1/2” x 3/4” bell reducer x 2
1” x 3/4” bell reducer stainless steel x 2
6” x 3/4” pipe nipple x 2
4” x 1/8” pipe nipple x 3
1/8” tee
1/8” 90 deg elbow
4” x 2” pipe nipple
0.6mm (0.025”) mig welding tip x 2
1/4” x 1/8” nipple
1/4” female/female ball valve
1/4” male to 3/8” male flare fitting/adapter
0-60 PSI adjustable pressure gauge
1/4” male thread
1/4” tee
1/4” x 1/4” nipple
Materials:
Refractory Cement Casolite 30 (Kiln supply store) 3 oz. to 1 lb
Kiln Shelf (kiln supply store)
KAO WOOL (fireplace store)
High temp spray paint (fireplace store)
Rigidizer= System 3 silica thickener 1 cup, 1 pint of water, blue dye

[@nteleguine]

Thank you for a detailed video, I saved it for future reference. I used a hard firebrick for the forge floor (but mine is made of a smaller helium/freon tank).

[@notthatdigusted7468]

Very good video I'm going to make one myself and it looks like something someone could make in 2-3 days.

[@notthatdigusted7468]

I feel like building one of these forges is like carving a metal pumpkin.

[@robertoesposito9081]

Nice work! Bravo

[@mightywhite360]

Nice forge, terrible choice of background music.

[@JuanVargas-id6md]

good evening, excellent video, I would like to know what is the blue product that applies, thanks

[@nateofalltrades]

Rigidizer with die.

[@curtisarckless6786]

Does this get up to forging temperature? Looking at making something similar

[@nateofalltrades]

Yes

[@adinbalog]

What kind of ridigizer? In Roumania we don't have for ceramic wool

[@pinocolada4254]

An oven builder told me he uses water glass, 50/50 water glass and water to spray it. He said it works fine up to 1200C. I have the same problem, no commercial rigidizer in Europe.

[@thefellingfella9886]

I have a question, is it aerosol high heat paint?

[@nateofalltrades]

Yes,

[@jacobspivey8432]

Do th 1-3/4 bell reducers have to be stainless?

[@nateofalltrades]

You don’t want to use galvanized, it can release toxic gas.

[@agremlin4255]

for future viewers do not use stainless either. Use black iron. When heated both galvanized parts and stainless release toxic chemicals like chromium. Use black iron fittings as they release no harmful gases even when heated.

[@christopherconkright1317]

What thickness kaowool?

[@nateofalltrades]

I believe it was one inch but I doubled up.

[@christopherconkright1317]

@@nateofalltrades thanks