Himtrust SKN-60 G1

Seamless thermal insulation of residential and industrial buildings, roofs and other structures, thermal insulation of pipelines and industrial refrigerators and refrigerators.


The actual density of 60-70 kg/m3, closed cell.

Blowing Agent: Water.

Flammability class – G1 (weak combustibility).

Ambient temperature during spraying is above +10°C.


Component A: Himtrust KAN-60 G1 (tare: 220 kg, 50 kg).

Component B: (container: 250 kg, 50 kg).

Technical information

Himtrust SKN-60 G1 is a two-component system for the production of closed cellular rigid polyurethane foams by spraying.

System description

The polyol component (component A) of the KAN-60 G1, is ready – to - use polyol component which contains stabilizers, catalysts, flame retardants, foaming agents.

Isocyanate component (component B) is a polymer of diphenylmethane diisocyanate brands: "Lupranat M 20 S", "Millionate MR-200", "Wannate PM-200", "Desmodur VKS 20 F.”

Application

Himtrust SKN-60 G1 is used to make a heat-resistant, closed-cell rigid polyurethane foam for seamless insulation of residential and industrial buildings, roofs and other structures, insulation of pipelines, insulation of industrial refrigerators and cold rooms by spraying.

Note:

  • G1 combustibility class (weak combustibility)
  • the operating temperature of the finished polyurethane foam in the range from -100°C to +120°C;
  • apply at a temperature not lower than +10°C
  • at a temperature of +10°C to +15°C, a layer of up to 5 mm is first sprayed. Then wait until the foam becomes elastic from 4 to 24 hours, afterwards apply the main layer;
  • if the temperature is above + 15°C, the foam can be applied in one layer up to 25 mm;
  • recommended temperatures are: component A +30 to + 35°C, component B +40 to +50°C.

Physical and mechanical parameters

Polyol component (KAN 60 -G1) Isocyanate component Testing method
Density at 20°C 1.05 -1.2 g/cm3 1.22-1.24 g/cm3 TU 2254-051-27903090-2014
Viscosity at 25°C 200-500 MPa·s 150-250 MPa·s TU 2254-051-27903090-2014
Storage period (shelf life) 12 months 6 months

Controlled Parameters

  1. Technological test
  2. • Components temperature: 20±1°C

    • Component ratio: A:B = 100 : 100 (by volume)

  3. Test in a cup (technological test):
Parameter Value Testing method
Start time, s 2-5 TU 2254 -051-27903090-2014
Rising time, s 10-20 TU 2254 -051-27903090-2014
Apparent density during the free foaming kg/m3 50-60 TU 2254 -051-27903090-2014

Preparation and Processing

  1. To ensure reactivity and viscosity of the components, it is necessary to bring the temperature of the A component to +30°C to +35°C, B component to +40°C to +50°C before processing.
  2. Use paddle stirrer to stir the polyol component for 10-15 minutes or horizontally roll the barrels for 20-30 minutes.
  3. The isocyanate component (component B) is not required to be mixed if it was stored at a temperature no lower than +15°C. If the isocyanate component was stored at a temperature below +15°C, then slowly heat it to a temperature not higher than +50°C. Then roll the barrel in a horizontal position to a homogeneous state of the component B.
  4. Himtrust SKN-60 G1 is equally suitable for working on machines of high and low pressures at the component temperature below 20°C

Surface requirements:

  1. Application surface should be strong, uniform, clean, dry, free of oils, fats, crumbling, exfoliating residues of the old coating, and dirt.
  2. Epoxy and polymethylmethacrylate surfaces should be pre-treated with abrasive equipment (belt or disc grinders) and cleared from the dust.
  3. Metal surfaces should be decreased and cleaned from rust.

Processing rules

  • The ambient temperature in a working zone should be not lower than +10°C
  • Surface moisture should not exceed the following values: concrete – no more than 4%; cement – sand – no more than 5%, wood – no more than 12%

Health effects and precautions

It is necessary to follow the safety measures in accordance with TU on Himtrust SKN-60 G1 system.

Physical and mechanical properties
of the polyurethane foam

Parameter Value Unit Testing method
Density in the core 60-70 Kg/m3 GOST 17177-94
Compressive strength 0.35-0.37 N/mm2 GOST 17177-94
Bending strength 0.5-0.55 N/mm2 GOST 17177-94
Content of closed cells 94-96 % ISO 4590
Vapor permeability coefficient 0.05 Mg(m*h*Pa) GOST 25898-2012
Water absorption by volume in 7 days No more than 5 % GOST 20869-75
Thermal conductivity 0.026-0.028 W(m*C) GOST 7076-99

Component consumption on 1 sq. m.

Temperature, °С Layer thickness, cm Component consumption, kg
+10 to +30 5 3.0-3.5

Storage recommendations

The polyol component storage period is 12 months at 20°C and without opening the barrels.

General spraying instructions

When spraying the coating thickness is controlled and fixed by varying the speed of application or mixing chamber of the gun. The thickness of one layer should be up to 25 mm.

The higher characteristics of the foam, the fewer layers used to achieve the same thickness. However, we do not advise to put a layer of more than 25 mm in one pass due to the occurrence of bubbles and other problems associated with a high thermal effect of the reaction.

Time for the foam to form takes longer if the spraying surface cold. In addition to that, on such surface the thickness of the insulation cannot reach its maximum. Therefore, the first layer should be a warming layer to provide the necessary degree for next layers to foam.

Recommended temperature in hoses is from +30 to 35°С; component A from +40 to +50°С; component B depends on the weather conditions.

If the weather conditions are adverse (cold surfaces, low temperatures, high humidity, etc.), we suggest to implement an additional 0.5 to 1.5% activator into component A. In this case, it is necessary to thoroughly mix the content of the barrel to achieve the proper degree of homogenization.

Problem resolution

Problem Possible reason Resolution
Spraying instability The nozzle of the gun is not properly adjusted or there is contamination in the mixing chamber Adjust the position of the gun. Clean the mixing chamber.
Spraying result has colored spots Poor mixing quality due to difficulty in components moving (congestion) or difference in viscosity Check the pressure, eliminate the congestion. Adjust and increase the temperatures
Spraying flow is weak or nothing at all Component viscosity is high. Spraying is done in a cold atmosphere Raise pressure temperature
Spraying flow is too strong, and creates some mist The air supple to the nozzle of the gun is too strong. Overpressure during mixing Reduce air flow. Reduce the pressure
The material does not have reaction for a long amount of time, it flows down the surface. Cold surface.
Amount of activator is not enough.
Increase heating in the hoses. Add activator
The material reacts too quickly, unevenly lie on the surface due to the fog formation. Overpressure Reduce the air pressure in the gun and in the mixture.
The material crumples (turns into granules), and forms blockages in the equipment. The temperature is too high Decrease temperature in the hoses
Bubbles are formed The thickness of the surface is higher than 20 mm in one pass of spraying Lowed the thickness amount during spraying
High consumption of the A component Difference in viscosity Change component ration if possible. Change hoses and container temperatures. Component B 40-45°C, Component A 20-25°C
Large shrinkage of the foam Not uniform flow Component B. Poor mixing quality due to difficulty in moving (congestion) components or difference in viscosity. Check the pressure, eliminate the congestion. Change the ratio of the components, if possible. Change the temperature in the hoses and in the tank: Component B 40-45°C, Component A 20-25°C.
Fragile foam Flow of the component A is uneven. Poor quality of mixing due to the component moving difficulties, or viscosity difference. Check the pressure, eliminate the congestion. Change the ratio of the components, if possible. Change the temperature in the hoses and in the tank: Component B 35-40°C, Component A 30-35°C

Rights

Production of polyurethane materials and foamed polymeric materials is protected by patents and patent applications. This publication does not grant the right to carry out patented technological processes. The information and recommendations contained in this publication fully reflect Himtrust’s knowledge of the product to date. All the information is accurate to the best of our knowledge at the time of the publication. Nothing in this publication should be construed as a warranty. In all circumstances, it is the user’s responsibility to determine the applicability of such information or the product itself to the user's specific purpose.

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Rigid polyurethane foam spraying with density of 20 kg/m3 and combustibility class G3 for seamless thermal insulation.

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Rigid polyurethane foam spraying with density of 30 kg/m3 and combustibility class G2 for seamless thermal insulation.

Foaming Agent: Water
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Consumption per 1m2 at 50 mm thickness: 2,0-2,25

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Rigid polyurethane foam spraying with density of 30 kg/m3 and combustibility class G3 for seamless thermal insulation.

Foaming Agent: Water
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The output of foam per set: 12-13
Consumption per 1m2 at 50 mm thickness: 1,8-2,5

Himtrust SKN-30 G4

Rigid polyurethane foam spraying with density of 30 kg/m3 and combustibility class G4 for seamless thermal insulation.

Foaming Agent: Water
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The output of foam per set: 12-13
Consumption per 1m2 at 50 mm thickness: 1,8-2,5

Himtrust SKN 30/141 G3

Rigid polyurethane foam spraying with density of 30 kg/m3 and combustibility class G3 for seamless thermal insulation.

Foaming Agent: Freon
Foaming density: 25-30
The output of foam per set: 12-14
Consumption per 1m2 at 50 mm thickness: 1,75-2,25

Himtrust SKN-30/141 G3 (winter)

Rigid polyurethane foam spraying with density of 30 kg/m3 and combustibility class G3 for seamless thermal insulation.

Foaming Agent: Freon
Foaming density: 30-35
The output of foam per set: 12-14
Consumption per 1m2 at 50 mm thickness: 1,8-2,25

Himtrust SKN-40 G1

Rigid polyurethane foam spraying with density of 40 kg/m3 and combustibility class G1 for seamless thermal insulation.

Foaming Agent: Water
Foaming density: 38-43
The output of foam per set: 9-10
Consumption per 1m2 at 50 mm thickness: 2,5-2,75

Himtrust SKN-40 G2

Rigid polyurethane foam spraying with density of 40 kg/m3 and combustibility class G2 for seamless thermal insulation.

Foaming Agent: Water
Foaming density: 38-43
The output of foam per set: 9-10
Consumption per 1m2 at 50 mm thickness: 2-2,25

Himtrust SKN-40 G3

Rigid polyurethane foam spraying with density of 40 kg/m3 and combustibility class G3 for seamless thermal insulation.

Foaming Agent: Water
Foaming density: 38-43
The output of foam per set: 9-10
Consumption per 1m2 at 50 mm thickness: 2,25-2,5

Himtrust SKN-40/141 G3

Rigid polyurethane foam spraying with density of 40 kg/m3 and combustibility class G3 for seamless thermal insulation.

Foaming Agent: Freon
Foaming density: 38-42
The output of foam per set: 9-10
Consumption per 1m2 at 50 mm thickness: 2,25-2,5

Himtrust SKN-40/141 G3(winter)

Rigid polyurethane foam spraying with density of 40 kg/m3 and combustibility class G3 for seamless thermal insulation.

Foaming Agent: Freon
Foaming density: 38-43
The output of foam per set: 9-10
Consumption per 1m2 at 50 mm thickness: 2,25-2,5

Himtrust SKN-60 G2

Rigid polyurethane foam spraying with density of 60kg/m3 and combustibility class G2 for seamless thermal insulation.

Foaming Agent: Water
Foaming density: 50-60
Consumption per 1m2 at 50 mm thickness: 3,0-3,5
Himtrust SKN-60 G3

Himtrust SKN-60 G3

Rigid polyurethane foam spraying with density of 60kg/m3 and combustibility class G3 for seamless thermal insulation.

Foaming Agent: Water
Foaming density: 50-60
Consumption per 1m2 at 50 mm thickness: 3,0-3,5
Himtrust SKN-100 G3

Himtrust SKN-100 G3

Rigid polyurethane foam spraying with density of 100kg/m3 and combustibility class G3 for seamless thermal insulation.

Foaming Agent: Water
Foaming density: 90-100
Consumption per 1m2 at 50 mm thickness: 5,0-5,5

Himtrust SKN-100/141 G3

Rigid polyurethane foam spraying with density of 100kg/m3 and combustibility class G3 for seamless thermal insulation.

Start time, (sec): 2-5
Foaming density: 90-100
Consumption per 1m2 at 50 mm thickness: 5,0-5,5

Himtrust SKN-80/141G3

Rigid polyurethane foam spraying with density of 80kg/m3 and combustibility class G3 for seamless thermal insulation.

Start time, (sec): 2-5
Foaming density: 70-80
Consumption per 1m2 at 50 mm thickness: 4.0-4.5
Himtrust SKN-60/141G3

Himtrust SKN-60/141G3

Rigid polyurethane foam spraying with density of 60kg/m3 and combustibility class G3 for seamless thermal insulation.

Start time, (sec): 2-5
Foaming density: 50-60
The output of foam per set: 7-8
Consumption per 1m2 at 50 mm thickness: 3,0-3,5