Casein Glue

Casein glue is a type of adhesive made from milk protein.

Casein glue. While largely replaced with synthetic resins casein based glues still have a use in certain niche applications such as laminating fireproof doors and the labeling of bottles. Casein glue is mainly used to adhere glass bottle labels. Casein glues are naturally gap filling and are satisfactory to use in bondline thickness up to about 0 08 cm. Casein glue is a simple home made glue costing next to nothing.

The special thing about casein glues is the very steep viscosity curve. Casein glues are made from the milk protein casein extracted from skimmed milk. This product is made by dissolving casein a protein obtained from milk in an aqueous alkaline solvent. How to make casein glue step 1.

There have been many uses for casein glue throughout history. Casein is produced by acidifying milk and precipitating out the casein product. Manufacture of casein the principal ingredient of casein glue is casein which is the chief protein constituent of milk. Skim milk into a medium sized cooking pot.

In wood bonding casein glues generally are superior to true animal glues in moisture resistance and aging read more. The glue is known to be very strong over a long period of time and is highly resistant to water. Casein has been used for many years as a wood adhesive. Animal glues have traditionally been used in bookbinding wood joining and many other areas but now are largely replaced by synthetic glues except in specialist applications like the production and repair of stringed instruments.

When cooled down the glue quickly becomes much thicker and when heated up it quickly becomes much thinner. Heat the skim milk on a medium or low setting for three to five minutes. Do not use any other type of milk besides skim cow s. Casein glue is also used in transformer manufacturing specifically transformer board due to its oil permeability.

The curd when washed and dried is the casein of commerce. The degree and type of alkali influences product behaviour. Do not allow the milk to reach a boil. The glue is known to be very strong over a long period of time and is resistant to water.

Experiment has shown it to be stronger than pva when sticking wood. When milk becomes sour it separates into curd and whey.