Resin

DPSI is the recognized specialist regarding phenolic foam resins.

Our formulations for phenolic resins offer controlled cell structures and optimized properties, resulting in fire resistant, durable and toxic free foams. Bakelite is the foundation for these resins, which is the oldest industrial-processed plastic (patented in 1907). It has remarkable properties that include thermal resistance, strength and of course the insulating properties. Thanks to these properties it is used for electrical components, sockets, switches and radio receivers. Today, Bakelite is used where high temperature requirements play a role, for example in the case of electrical components, cooking utensils, etc.

Advantages

DPSI’s resin formulations and recipes offer the following critical benefits:

• Lower Thermal Conductivity; phenolic foams produced with DPSI resin and formulations have a superior insulation performance compared to conventional insulation materials (up to 40%).  The thermal conductivity (lambda/ k value/k factor) has a typical value of 0,21 W/mk, which allows for energy savings with minimal insulation thickness whilst conforming to (and often exceeding) building construction regulations and requirements. As a result, we save valuable space and enable energy, cost and CO2 savings to be easily met.
• Excellent Fire Performance: with the growing importance of protection and safety, phenolic foams produced under DPSI licenses fulfil international requirements for fire behaviour and adhere to the worldwide norms BSI EN and ASTM.  Compared to other expanded Bakelite foam materials, DPSI formulations and resins are unique in their ability to successfully complete the ASTM E 84 fire test (Flame Spread Index  < 25 and SI Smoke Index  < 50). The negligible smoke emission can make a significant difference in saving lives during a fire, and prevents toxic fume release. Another important property is that the material will not drip when in contact with a fire source. Also, when applied as an external insulated wall system, materials produced under DPSI license can limit fire propagation on the outside of a building.
• Blocks Moisture: condensation can compromise the effectiveness of insulating materials (moisture infiltration can rigorously affect the thermal efficiency), which is a major problem in hot and humid climates.  Potential consequences include damaged and/or corroded pipes.  DPSI resins and formulations ensure foams have a closed cell structure  (more than 95%) to prevent migration of moisture and internal condensation – in contrast to materials with an open cell structure.