What is colloidal silica Rigidizer?

Ludox Rigidizer is a colloidal silica compound for treating surfaces of ceramic fiber products to provide a degree of surface hardness and resistance to erosion. Ludox Rigidizer is stabilized against freezing during exposure to cold, however, freezing should be avoided.

What is Kaowool Rigidizer?

Kaowool Rigidizer is a colloidal silica compound for treating surfaces of Kaowool ceramic fiber products to provide a degree of surface hardness and resistance to erosion. Kaowool Rigidizer is stabilized against freezing during exposure to cold; however, freezing should be avoided.

How is fumed silica made?

Fumed silica is made from flame pyrolysis of silicon tetrachloride or from quartz sand vaporized in a 3000 °C electric arc.

How do you mix fumed silica Rigidizer?

ratio of about 3 parts powder to about 7 parts water seems to be a common average. One source said they use a cup of fumed silica to a pint of water with really good results.

How long does it take for Rigidizer to cure?

Mix the Rigidizer concentrate with water using a 1 to 1 ratio, shake vigorously for 45 seconds before using. Spray water lightly on all sides of the blanket. This is done to prepare the blanket for the process of applying the rigidizer. Allow 1st Coat to dry: Let the first coat air dry for 24 hours.

What is the use of colloidal silica?

The applications range from surface treatment in the paper industry, to use as a polishing agent in the electronics industry and use as an additive for varnishes, coatings and paints to improve weather and abrasion resistance. It is also a common additive in cosmetics and in the food industry.

What is the difference between fumed silica and colloidal silica?

Colloidal silica comes in different sizes and shapes. The main benefit of colloidal silica over fumed silica is that they can generate very small particles, as small as 5 to 10 nm. Also colloidal silica can be well dispersed to the primary particles while fumed silica particles are always aggregated.

What can you use fumed silica for?

Like silica gel, it serves as a desiccant. It is used in cosmetics for its light-diffusing properties. It is used as a light abrasive, in products like toothpaste. Other uses include filler in silicone elastomer and viscosity adjustment in paints, coatings, printing inks, adhesives and unsaturated polyester resins.

Is silica rigidizer good for ceramic wool?

Silica rigidizer does many good things to ceramic wool, but the most important thing is to freeze it in place, so that your hot face layer has a stable surface to rest on. More sharing options… Ok.. Let me try this again.. I posted a link to a short video and lost my last post.. Ha.. Matrikote looks like a good Rigidizer.

What is Kaowool rigidizer for ceramic fiber?

Kaowool Rigidizer for ceramic fiber receives its bonding action from the removal of physical water. Bonding may be accelerated by heating or over drying. Curing is a function of the size of the shape and its geometry.

How to use rigidizer on ceramic fiber?

Erosion Resistance: Rigidizer increases surface erosion resistance for surfaces exposed to high velocity gases. Easy to Apply: Because of it low viscosity its application on ceramic fiber materials becomes very simple. It can be applied with brushing, spraying or dipping. It takes around 24 hours for curing post application.

Can rigidizer be used in cold weather?

Typical Rigidizer solutions are destroyed by the cold. They irreversibly crystallize at -2°C and are useless. Many blacksmiths have been disappointed reaching for their bottle of Rigidizer after it has been shipped or kept in the garage in colder weather. Our Freeze Proof Rigidizer can uniquely withstand temperatures of -40°C (or -40°F).