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Crystic 2-446PALV pre-accelerated, thixotropic, spray viscosity polyester resin with low styrene emission

117,50 €

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Crystic 2-446PA is a pre-accelerated, thixotropic, spray viscosity polyester resin with low styrene emission. Its rapid wetout,
low exotherm and fast hardening characteristics make it ideal for spray applications which require a fast mould turn
round. Variants giving a range of geltimes and viscosities are also available. During the spray-up phase, styrene
emissions from Crystic 2-446PA are considerably reduced compared to normal spray applied resins. Levels significantly
lower than current or proposed legislation can be attained. This reduction in styrene emission is achieved with no loss of
interlaminar adhesion.

 

Approvals

Crystic 2-446PA is approved by Det - Norske Veritas and by Lloyd’s Register of Shipping for use in the construction of
craft under their survey.

Formulation

Formulation
Crystic 2-446PA and its variants should be allowed to attain workshop temperature (18ºC - 20ºC) before use. They need
only the addition of a catalyst to start the curing reaction. A colour change mechanism is incorporated into Crystic 2-
446PA and its variants, to indicate the presence of catalyst. After catalyst addition, the resins will change from blue to
green, then to a yellowish colour, before gelation. The recommended catalyst is Catalyst M (or Butanox M50) which
should be added at 1% or 2% into the resin. The geltime of Crystic 2-446PA can be approximately determined from the
table below

 

Parts of Catalyst M to 100 parts
of Crystic 2-446PA 

1.0      

2.0       

Pot life in minutes at 15oC

62

41

Pot life in minutes at 20oC

39

29

Pot life in minutes at 25oC

25

20

 

The mould, resin and workshop should be at, or above, 15ºC before curing is carried out.

 

Additives

Certain pigments, fillers or extra styrene may adversely affect the spraying and final properties of Crystic 2-446PA and its
variants. Any additions should therefore be evaluated before any large scale use.

 

Post curing

Satisfactory laminates for many applications can be made from Crystic 2-446PA and its variants, by curing at workshop
temperature (20ºC). Some increase in properties may be obtained by post curing. The laminates should be allowed to
cure for 24 hours at 20ºC, and then be oven cured for 16 hours at 40ºC.

 

Storage

Crystic 2-446PA and its variants should be stored in the dark in suitable closed containers. It is recommended that the
storage temperature should be less than 20ºC where practical, but should not exceed 30ºC. Ideally, containers should
only be opened immediately prior to use. Where they have to be stored outside, it is recommended that they are kept in
a horizontal position to avoid the possible ingress of water.

Type of Supply

Crystic 2-446PALV x 225 kg, supplied with 5 kg of MEKP catalyst  (Luperox K1S)

Crystic 2-446PALV x 1100 kg, supplied with 25 kg of MEKP catalyst  (Luperox K1S)

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