Clay 88 SA
September 3, 2018
CONTOUR 72 Acryl
September 3, 2018

AK-20 glue

Chemical nature – a solution based on nitrocellulose. Appearance – liquid uniform transparent without foreign inclusions. 

The bonding material of AK-20 glue is nitrocellulose, dissolved in a mixture of organic solvents with the addition of plasticizers. This glue is used for gluing wood, celluloid, AM-1 film, textolite, getinax, varnished cloth and metals among themselves and in various combinations.
The number of components supplied is 1.

The range of operating temperatures is from minus 60 to plus 60 ° C.

Bonding technology:
The bonding surface is thoroughly cleaned of dust, grease and other contaminants. Glue is applied to the surface with a brush.
Glue is applied in two thin uniform layers, consumption of 2 g / dm2 per layer. Open exposure at room temperature of the first layer 20-30 minutes, the second 3-4 minutes. The skin or other glued material is rolled with a roller, if this is not possible, smooth it with a rag to remove bubbles and folds. Curing takes place at room temperature under a pressure of 0.04 MN / m2 for at least 8 hours, and then without pressure another 18-24 hours. The seam is not worse than when gluing with enamel, but the mass is somewhat larger. The adhesive is sufficiently water resistant, but not resistant to organic solvents (acetone, RFD). It is not recommended to use this glue in constructions with difficult air access to the seam.

Glue is diluted with solvent 646 GOST 18188-72.

Name of the indicator

Norm

The appearance of glue

Uniform transparent liquid without foreign inclusions. Light opalescence is allowed.

The appearance of the coating

The dried coating should be transparent and uniform.

Mass fraction of nonvolatile substances,%

20-23

Conditional viscosity at a temperature of 20 ° C on the viscometer of the type VZ-246 with a nozzle diameter of 6 mm

50-70

Acid lacquer number mg KOH / g, not more than

0.5

Drying time at temperature (20 ± 2) ° С to degree 3, h, not more

one

Bonding strength of AM-100 fabric to wood (plywood) according to OST 1 90315-83 *, N (kgf) per 1m length, not less

637 (65)

* Strength indicators are determined by the technical documentation OST 1 90315-83 “Adhesives. Method for determining the strength when peeling adhesive joints of film and elastic decorative materials “.

Term and storage conditions: AK-20 glue is toxic and flammable. Store the glue in a closed container, protecting it from moisture, heat and direct sunlight. Temperature storage from –40 ° C to + 40 ° C. Store away from food. Warranty period of storage 6 months from the date of manufacture 

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