Our chemists, engineers and technicians develop something unbeatable every day. Whether they are working on compact gaskets or thixotropic foam gaskets, molded or rigid foams, RAKU-SKIN foams or high-pressure foams. We offer sealings that are pressure resistant up to 200 bar as well as antibacterial material.

Compact Gaskets (FIPG: Formed-In-Place-Gaskets)

Compact Gaskets (FIPG: Formed-In-Place-Gaskets)

Unfoamed gaskets are produced from polymerization without change of volume. They can be adjusted to be anything from liquid to pasty, and can be processed both using 2-component low-pressure mixing system and also high-pressure systems. They are made from polyurethane oder silicones.

Type: RAKU-PUR Type 30, RAKU-SIL Type 10/13/14/15-S

Special benefits

  • Wide hardness range
  • Extremely high mechanical strength (up to 6,000 kPa)
  • High degree of elasticity (up to 500%)
  • Extremely good vibration damping and sound insulation

Sealing applications e.g. in the automotive sector, appliances, electronics, leisure or building materials industry.


Liquid Foam Gaskets (FIPFG: Formed-In-Place-Foam-Gaskets)

Liquid Foam Gaskets (FIPFG: Formed-In-Place-Foam-Gaskets)

Liquid foam gaskets require a distinctive groove and a plain surface. These are applied directly onto the cpomonent using a 2-component low-pressure mixing and dispensing system, and formed in place (FIPFG = Formed in Place Foam Gasket). 

Type: RAKU-PUR Type 31, RAKU-SIL Type 11-S

Special benefits

  • Self-levelling
  • Tolerances < 3 mm possible
  • Gaskets with cross section of < 1 mm possible

Sealing applications, e.g. ventilation grilles, electronic boxes, brake lights


Thixotropic Foam Gaskets (FIPFG: Formed-In-Place-Gaskets)

Thixotropic Foam Gaskets (FIPFG: Formed-In-Place-Gaskets)

High-thixotropic gasket systems, which can be applied with or without groove. FIPFG gaskets are processed using 2-component low-pressure mixing and dispensing systems.

Type: RAKU-PUR Type 32, RAKU-SIL Type 12/13/14/15-S

Special benefits

  • Reliable sealing, particularly suited for three-dimensional complex sealing contours
  • Over head application: no running / dripping
  • Height to width ratio: 1:1 possible
  • No excessive penetration in open-pored materials (textiles)

Sealing applications e.g. switch cabinets, ventilation grilles, fabric protectors, coating of rolls / cylinders, lights, door modules, electronic boxes, 3rd brake light


RAKU-SKIN foams

RAKU-SKIN foams

RAKU-SKIN comprises a soft PU core and a high-performance PU elastomer skin. Processing using 3 - 4-component low-pressure mixing and dispensing systems.

Type: RAKU-SKIN Type 36

Special benefits

  • Extreme tear strength
  • Very good chemical resistancce
  • UV resistance
  • Extremely low water absorption < 3%
  • Improved gas tightness
  • Antistatic adjustment possible

Sealing applications e.g. in outdoor areas, such as gaskets for switch cabinets, solar modules


Molded foams

Molded foams

Molded foams are construction materials offering the ideal combination of alight, soft core and a compact outer skin. Molded soft foams are special materials permitting extreme compression which have an excellent compression set. The fullfill outstanding sealing functions in wide-ranging different sectors of industry.

Type: RAKU-PUR Type 33, RAKU-SIL Type 11/14

Special benefits

  • Short reaction and demolding times
  • Highly hydrophibic
  • High mechanical strength

Sealing applications include selaing elements in oil or air filters, design of cable grommets


Rigid foams

Rigid foams

Rigid foams is the term given to construction materials with a low density and closed-cell structure. Processed using high or low pressure with suitable molds. Particularly suited for lightweight moldings which have to comply with certain static requirements.

Type: RAKU-PUR Type 34

Special benefits

  • Short reaction and demolding teimes
  • High mechanical strength
  • Excellent vibration damping, noise and thermal insulation

Sealing applications: appliance and machine parts, as well as components for vehicles, sports equipment.


High Pressure foams

High-pressure foams

Sealing foams with high-pressure capability form RAMPF are ideally adjusted for processing using high-pressure systems (such as RimStar Nano from Krauss Maffei)

Type: RAKU-PUR Type HD 35

Special benefits

  • Fast curing
  • Excellent mechanical strength
  • High tear strength (> 100%)
  • Low water absorption
  • Outstanding appearance
  • Minimal density

Sealing applications e.g. door modules, switch cabinets, lights, packaging, filters.


RAKU-PUR Foam Gaskets stand for highest quality and easy handling. For more than 25 years, in-situ sealings have been applied in many industrial areas. RAKU-PUR foam gaskets are distinguished by low water absorption, good adhesion to different surfaces, high temperature resistance and the cost-efficient manufacturing process.