Crestapol® 1250

• Crestapol® 1250 is a low viscosity resin designed for maximum wet out for pultruding fibreglass, carbon fibre and other fibres.
• Crestapol® 1250 efficiently produces fast curing, very tough, high strength composites with superior water and hydrolysis resistance.
• Run times and formulation will depend on the geometry and complexity of the die.
• Crestapol® 1250 will run very fast making for very efficient pultruded parts.

¹ Cast resin, cure: 2% of 1% solution cobalt in styrene, + 2%LPT-IN. Post Cure: 16 hours at 40°C (Lloyd’s).

A non-exclusive list of factors to consider when optimising a pultrusion manufacturing process are:

• Reinforcement type
• Resin type
• Resin/reinforcement ratio
• Resin temperature
• Profile shape
• Profile thickness
• Die length
• Die heating method (oil, electric, water)
• Peroxide package
• Die temperature set points

This is an example start point formulation/set up, however, for the factors listed above, there will be some local optimising required to maximise productivity.

Fibre volume fraction of >70% is achievable with this resin.

Impact Resistance Data:

• ASTM D 4226 Standard Test Method for Impact Resistance of rigid Poly Vinyl Chloride building products was conducted by Professional Engineering Inc. to determine what affect impact at extreme temperatures would have on the composite material.
• Tests to be conducted at -54°C, ambient, and 71°C, on thirty samples at each temperature.
• All samples were conditioned for at least 24 hours then immediately tested to maintain the temperature of the test specimen.
• An 8.4lb weight was dropped from various heights to determine if the fibres broke in the composite material.
• For purposes of customer testing, the failure criteria would be no permanent deformation or breakage of the skin material.
• There was no permanent deformation or breakage observed.

UV Weathering Data:

Results: Crestapol® 1250
The resin colour-shifted but no fibre bloom detected, meaning the resin did not degrade.

Laminate lay up as follows:

• 9” x 9” square
• 2 x glass tissue on tool side
• 2 x 450gsm powder pound CSM
• Peel ply and infusion flow media on bag side only

• Crestapol® 1250 should be stored ar 25°C in the original, unopened container in a dry, well ventilated place
• Protect from freezing and direct sunlight.
• Avoid contact with oxidising agents.
• The shelflife is defined from date of manufacture when stored as recommended.
• The expiry date is indicated on product labels.