Hermetic Vixent PC-68 K-68

Vixent K-68, PC-68 two-component compound THAT 38.103508-81

Compound Vixent K-68, PC 68 is suitable for sealing various products electronic and electrical equipment operating in air and in humid conditions. Contact with the compound Vixent K-68 in the range of operating temperatures does not cause corrosion of aluminum alloys non-anodized, non-clad, steel kadmirovannye and zinc plated with chromate passivation, brass and silver coating, at temperatures of warm-up 60, 100, 150°C does not cause corrosion of the tin coating and copper; when temperatures warm up 200 and 250°C does not increase corrosion of copper. Viscous flow. Commaund K-68, PC-68 vixent vypuskaetsya two brands:
grade A - for pouring;
grade B - to coat.

Color - from white to grey. To ensure adhesion to metals used sublayer.
Specifications Vixent U-2-neimenovani indicator Compound K-68, PC-68
Density, kg/m
Operating temperature K-68, PC 68, °C -70+250
Viability, min 0.5 to 6 h
CONV. tensile strength, MPa, not less than 1.67
Shore hardness A., CONV. ed 45-65
The dielectric constant at a frequency of 1 MHz 4
Dielectric strength at 20°C kV/mm 15
The tangent of dielectric loss angle at 10 Hz, not more than 0.02

Packing:
Compound Vixent K-68, PC 68: 26l metal drum with vulcanologists.
Shelf life:
Compound Vixent K-68, PC-68 - 12 months.

Two-component mixtures of K-68, PC-68 obtained on the basis of low-molecular dimethylsiloxane rubber. Two-component compounds represent paste-like material that has the ability, when mixed with a catalyst to vulcanizates at ambient temperature, passing in a rubbery state.

Potting compound PC-68 is used to protect electronic products and electronic equipment continuously operating in the environment of air and in humid conditions. Softness and elasticity to allow the use of Vixent PC-68 for sealing products made of ferrites and permalloy. The transparency of the compound allows easily perform fault detection and repair of units and circuits. Is Vixent PC-68 beyond 38.103508-81 OJSC "plant". Mark And less viscous, more viscous grade B.

Volumetric and electrical resistivity of the compound Vixent-PC 68 at a temperature of +20°C +25°C and a relative humidity of 60-65%, Ohm*cm, not less than 1*10\13. The tangent of dielectric loss angle of Vicente at a frequency of 106 Hz, not more than 0.025. The dielectric constant is not more than 3.0. Electric strength at t +20°C + 25°C and a relative humidity of 60-65% kV/mm, not less than 15. The bond strength of the compound Vixent PC-68 with metal at breaking when applying the underlayer P-11 is not less 0,29 (0,3) kN/m (kgf/cm).

Pasta "To" or rubber IS a catalyst in the ratio specified in the passport of the compound Vixent PC-68, mix thoroughly with a spatula or a mechanical stirrer, porcelain, metal or plastic container until a homogeneous mass. The time of mixing, depending on the size of the sample prepared compound viscosity of the paste and mixing intensity, is from 3 to 10 min.

The stirred mixture of compound PC-68 should not have air bubbles, for which the mixture is evacuated with the vacuum pressure from 986 to 993 hPa (residual from 15 to 20 mm Hg. calendar) at the temperature from +15°to +30°C until the cessation of foaming. After that, the prepared compound is applied on the prepared the sealed surface. Complete cure occurs at ambient temperature for 72 hours counted from the moment of mixing paste (polymer) with a catalyst.

When using the underlayer P-11, the surface is first degreased with benzene (acetone, ethanol) and air dried at a temperature of from +15°to +30°C. the thus prepared surface with a clean brush applied once a uniform layer a sublayer of P-11. Deposited underlayer is dried in air at a temperature of from +15°to +30°C for at least 40 minutes After it is applied to the surface a mixture of the compound with the catalyst.

Vixent PC-68 comes in sets of 5-7 kg or 50 kg is Transported by conventional means of transport.