K Rend R7 Acrylic 5 Litre - J017

K Rend R7 Acrylic is a primer used to go onto difficult substrates such as brick in preparation for our K Rend HP 12/HPX Base Coat which is applied whilst the R7 is still tacky. R7 Acrylic can be applied using a roller or by hand. This modified acrylic emulsion is used to improve the adhesion of K Rend renders to difficult substrates where the background does not provide sufficient key or has poor suction characteristics. The material is usually diluted before use.

Application:

DILUTION

• Dilute K Rend R7 Acrylic by pouring the material into clean drinking water
• For most applications, a dilution of 1 part K Rend R7 Acrylic to 4 parts water is recommended
• Site trials should be carried out to determine the optimum dosage rate

PRIMING COAT

• Dilute K Rend R7 Acrylic as required
• Mix render, ready for application
• Apply primer to surface using brush or roller
• Apply render to primed background whilst the primer is still wet or tacky
• Do not allow primer to skin over or dry before applying render

GAUGING LIQUID

• Dilute K Rend R7 Acrylic as required
• Use diluted K Rend R7 Acrylic as gauging liquid to mix render
• Apply render to substrate as normal
• K Rend R7 Acrylic may affect the render performance, including handling properties and setting times

SCUD COAT

• Dilute K Rend R7 Acrylic as required
• Use diluted K Rend R7 Acrylic as gauging liquid to mix with K Rend HP12 Base into a slurry
• Apply as splatter-dash or stipple coat to background
• Allow scud coat to cure before rendering

Specification:

• Coverage as a primer: 5 - 10 m² per litre of diluted material, depending on substrate and level of application