Adhesive Rubber Mastic: Technical Characteristics Of KN-2, KN-3 And Other Brands, GOST

2024 Author: Beatrice Philips | [email protected]. Last modified: 2024-01-09 13:15

Adhesive rubber mastic - a universal building material … It is considered the most reliable bonding agent for various surfaces. The substance is actively used in solving household problems, at industrial construction sites, where it is important to have a strong connection of materials of different quality without the slightest gap.

Peculiarities

KN-mastics are called rubber glue . It is based on indene-coumarone resins. Produced in cans, it has a homogeneous mass. The stability of the mass is ensured by the volatile solvents contained in the composition. If the container is left open, they evaporate, the mastic hardens, it cannot be diluted to the required viscosity. The technical properties of the glue are also lost.

It is produced in accordance with the requirements of GOST. The peculiarity of the glue is its close to natural ingredients, harmless to the person working with it. Mastic is prepared from the following products:

• synthetic rubber;
• solvent;
• fillers;
• polymer resins.

Adhesive rubber mastic has established itself as the most durable waterproof agent for joining different materials. Construction and repair work takes place without difficulty if KN mastics are used when joining heterogeneous materials. They securely join the trim elements on a pre-leveled base.

KN-3 glue was created specifically for plywood, which makes it possible to solve various problems of construction and decoration with a minimum of costs . The mastics are packed in hermetically sealed metal containers. Their consistency is viscous, yellow-brown to black in color.

The additives used in the production of glue do not allow the development of mold and have bactericidal properties. The rubber provides the mastic with high adhesive properties. Fillers - plasticizers, modifiers - impart high plasticity to the mass. Solvents give the glue the desired consistency and viscosity.

Technical characteristics of funds

Various types of glue have been tested over 3 decades of use in construction work. It has excellent technical characteristics:

• reliable strength;
• excellent adhesion;
• water resistance;
• bio sustainability;
• withstands temperature extremes, retaining its properties.

KN-2 brand glue is used in construction, repair, and finishing works. KN-3 mastic is produced in the form of a pasty mass. Due to the presence of an adhesive base in it, it ensures reliable adhesion of various materials to the floor screed, concrete walls and ceilings.

Application area

Mastics are used in floor, decoration, wall, roofing works. Synthetic rubber easily and reliably glues different materials: drywall, plywood, hardboard, chipboard, which is ensured by the additional inclusion of plasticizers in the glue . The result is a reliable waterproof connection that is resistant to aggressive detergents, water, high and low temperatures. These features of the glue make it possible to use it in indoor and outdoor applications.

A ready-to-use mastic is produced. With its help, roll, tile, floor, roofing materials are reliably connected:

• PVC linoleums with and without a base;
• rubber linoleums;
• facing tiles;
• carpet.

Rubber mastic is intended for laying parquet, gluing baseboards. It is used to glue together individual parts, waterproofing, sealing, and sealing. With her, the walls are faced with various decorative elements. The glue is considered to be environmentally friendly and economical.

Application technique

Work with rubber mastic should be in a ventilated area, on a dry, free from dirt, dust, oil base. Stir the mastic thoroughly before starting work. After that, it is easy to apply to any surface. Recommended layer - 0.3 mm … It is recommended to apply glue with paint rollers, brushes, wooden spatulas. Porous elements should be coated with 2 layers with a break per day. The viscous mass fills any gaps in the parts to be bonded.

It is important to take into account that KN mastic is highly flammable and explosive. Because of this, metal spatulas cannot be used to apply mastic: they are capable of cutting sparks, provoking a fire.