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Polyurethanes (PUR), silicones

The seals feature reliable sealing, low water absorption, high level of restoring force and soft surface.

2K Foam Gaskets based on polyurethan

The product is used for the production of formed-in-place foam gaskets (FIPFG). The gasket provides reliable sealing, low water absorption, high compression recovery and smooth surface. 2K foamed gaskets will be applied on all surfaces with process reliabili.

Typical applications are:

  • Automotive: all kinds of electronic housings, noise reduction, headlamps and various light fixtures.
  • Industry: doors of electrical cabinets, covers, sealing of lamps, air conditioning units

Technical data: see “Download Product Overview”

RAKU-PUR

Thixotropic sealing foams

You can use these high viscosity sealing systems in applications with or without a groove. The advantage is in the secure sealing, particularly on three-dimensional parts. No dripping or drain off. The materials are applied with 2 Components-low pressure mixing & dosing systems.

Beside these basic grades which are shown here, you can get additional, comprehensive information for all available materials on request.

   

Technical data

32-325032-3250-1132-3250-36
Type2K PUR thixotropic2K PUR thixotropic2K PUR thixotropic
Colorblackblackblack
Mixing ratio A:B100:22.2100:18.2100:20
Viscosity Comp. A [mPa*s]70,000–100,00050,000–80,00040,000–60,000
Cream time [s]20–3035–4540–60
Tack free [min]2–46–102–5
Hardness Shore 0045–5045–5525–40
Water absorption [%]6–896
Compression recovery [%]99–10099–10099–100
CharacteristicsFast curing, High viscosity, Low compression hardness, High tensile strengthUniversal PUR foam for a broad application range, Good adhesion on coated surfaceFast curing, RAKU SPEED Technology, Very good sealing properties, Very good compression set
ApprovalsUL50 + UL50EUL50 + UL50E--
ApplicationsEnclosures, door modulesEnclosure, door modulesDoor modules

RAKU-PUR

Liquid sealing systems

Liquid sealing systems require a distinct groove and a level application surface. They are applied directly to the part using 2-component low-pressure mixing and dispensing equipment and expand in situ.

Beside these basic grades which are shown here, you can get additional, comprehensive information for all available materials on request.

   

Technical data

31-3131-131-3156
Type2K PUR liquid2K PUR liquid
Colorblackblack
Mixing ratio A:B100:18.2100:16.7
Viscosity Comp. A [mPa*s]2,000–4,0002,500–3,500
Cream time [s]35–4530–40
Tack free [min]5–83–7
Hardness Shore 0040–5035–40
Water absorption [%]approx. 6approx. 7
Compression recovery [%]99–10099–100
CharacteristicsExcellent mech. Properties,
Tough skin,
Low water absorption,
Good compression set
Very soft,
Low water absorption,
Very good compression set at higher temperatures
ApprovalsUL50 + UL50E--
ApplicationsElectrical housings,
Lighting
Lighting,
Automotive applications

RAKU-SIL

Silicone sealing systems

Silicones offer you the optimum solution for sealing, protecting, bonding, and casting components in response to your specific requirements profile. Process reliability is ensured during manufacturing, which normally takes place on low-pressure mixing and dispensing equipment.

Beside these basic grades which are shown here, you can get additional, comprehensive information for all available materials on request.

   

Technical data

37-120137-1104
Type2K PUR thixotropic2K PUR liquid
Colordark greydark grey
Mixing ratio A:B100:100100:100
Viscosity Comp. A [mPa*s]50,000–70,0008,000–12,000
Cream time [s]120–16060–150
Tack free [min]6–106–10
Hardness Shore 0035–5040–55
Water absorption [%]0,30,1
Compression recovery [%]99–10099–100
CharacteristicsThixotropic – for free foamed sealing systems, High temperature resistance
up to 220 °C, Flexible to -40 °C,
Hydrophobic, High chemical resistance, UV stable
Liquid – for applications in grooves, High temperature resistance
up to 220 °C, Flexible to -40 °C, Hydrophobic, High chemical resistance, UV stable
ApprovalsUL50 + UL50E, UL157, UL508UL50 + UL50E, UL157, UL508
ApplicationsOutdoor, Off-Shore, Abrasive environmentOutdoor, Off-Shore, Abrasive environment
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