Product Description

Features and Benefits

Crystic Gelcoat 65PA has excellent water and weather resistance.

Approvals

Crystic Gelcoat 65PA is approved by Lloyds Register of Shipping for use in the construction of craft under their survey. When backed with Crystic 356PA, it is capable of obtaining a Class 1 certificate to BS476 Part 7 and of satisfying the requirements of the Building Regulations for a Class O structure. The same laminate can also achieve an M1 rating to the French Epiradiateur NFP 92-501 test.

Formulation

Crystic Gelcoat 65PA should be allowed to attain workshop temperature (18C-20ºC) before use. Stir well by hand, or with a low shear mixer to avoid aeration, and then allow to stand to regain thixotropy. Crystic Gelcoat 65PA requires only the addition of catalyst to start the curing reaction. The recommended catalyst is Butanox M50 (or other equivalent catalyst), which should be added at 2% into the gelcoat. (Please consult our Technical Service Department if other catalysts are to be used). The catalyst should be thoroughly incorporated into the gelcoat, with a low shear mechanical stirrer where possible.

Pot Life

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

Application

For normal moulding, the application of Crystic Gelcoat 65PA should be controlled to 0.4-0.5mm (0.015-0.020 inch) wet film thickness. As a guide, approximately 450-600 g/m2 of gelcoat mixture (depending on pigment) will give the required thickness when evenly applied.

Recommended Testing

It is recommended that customers test all pigmented gelcoats before use under their own conditions of application to ensure the required surface finish is achieved.

Additives

Crystic Gelcoat 65PA is supplied in a wide range of colours. This eliminates the potential for mixing errors with small quantities of pigment paste. The addition of fillers or pigments can adversely affect the water and weather resistance of the cured gelcoat. Crystic Gelcoat 65PA can be used as a topcoat provided that 2% Crystic Solution MW is added to overcome the normal tackiness.

Physical Data – Uncured

The following tables give typical properties of Crystic Gelcoat 65PA when tested in accordance with SB, BS, EN or BS EN ISO test methods.

Physical Data  Cured

* Curing Schedule – 24hrs at 20ºC, 3hrs at 80ºC.

Curing Schedule – 24hrs at 20ºC, 5hrs at 80ºC, 3hrs at 120ºC.

Post-Curing

Satisfactory laminates for many applications can be made with Crystic Gelcoat 65PA by curing at workshop temperature

(20ºC). However, for optimum properties, laminates must be post-cured before being put into service. The moulding

should be allowed to cure for 24 hours at 20ºC, and then be oven-cured for 3 hours at 80ºC.

Storage

Crystic Gelcoat 65PA should be stored in its original container and out of direct sunlight. It is recommended that the

storage temperature should be less than 20ºC where practical, but should not exceed 30ºC. Ideally, containers should be

opened only immediately prior to use.

Packaging

Crystic Gelcoat 65PA is supplied in 1Kg, 5Kg, 25Kg and 225Kg containers.

Health and Safety

See separate Material Safety Data Sheet.

Additional information

Guides

Data Sheets