Crystic® Fireguard Gelcoat 70PA

1 of 176 products in this brand
Crystic® Fireguard Gelcoat 70PA is our market leading halogen-free fire retardant gelcoat. It has been specifically designed for very stringent fire approvals particularly requiring low smoke characteristics. It achieves TS45545 HL2 with Crestapol 1212 and has low surface spread of flame. It can also be used with standard polyester fire retardant resins.
Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Features & Benefits

Labeling Claims
Features and Benefits
Crystic Fireguard 70PA has good weathering properties and low flammability. Properly manufactured, fully cured laminates using Crystic Fireguard 70PA and Crestapol 1212 with 170phr ATH can achieve a HL2 rating to TS45545-2: 2009 (Firestarr).

Applications & Uses

Application Method
Composites Processing Methods
Applications
Crystic Fireguard 70PA can be used on both internal parts and external parts for building, transport and general industrial work.
Pot Life
Temperature Pot Life in Minutes
15ºC 21
20ºC 15
25ºC 12

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

Formulation Guidelines
Crystic Fireguard 70PA should be allowed to attain workshop temperature (18°C - 20°C) before use. Stir well by hand or with a low shear stirrer to avoid aeration and then allow to stand to regain thixotropy. Crystic Fireguard 70PA 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.
Spray Application

Do 

  • Gently stir the gelcoat before use by hand or low shear stirrer.
  • Ensure the gelcoat has attained workshop temperature of 18°C - 25°C before use. (Temperatures below 18°C will require higher pressure to achieve an acceptable spray pattern and this will encourage porosity).
  • Spray at the minimum practical pressure whilst maintaining an acceptable spray pattern and full fan width.
  • Apply a mist coat and then build up thickness in long, even passes of 0.125mm (0.005 inch) until the recommended wet film thickness of 0.5 - 0.625mm (0.020-0.025 inch) is reached. This will minimize porosity and color defects.

 

Don’t

  • Stir the gelcoat with high shear mixers as this will temporarily break down the thixotropy leading to drainage.
  • Exceed a wet film thickness of 0.625mm (0.025 inch) as thick films encourage air retention.
  • Apply excessive thickness in corner areas as this can cause pre-release.

Properties

Color
Physical Form
Typical Topcoat Properties (Uncured)
ValueUnitsTest Method / Conditions
Specific Gravity (at 25°C)1.4SB, BS EN or BS EN ISO test method
Stability (at 20°C)3MonthsSB, BS EN or BS EN ISO test method
Gel Time (at 25°C, using 2% Butanox M50)12MinutesSB, BS EN or BS EN ISO test method

Technical Details & Test Data

Post Curing
Satisfactory laminates for many applications can be made with Crystic Fireguard 70PA by curing at workshop temperature (20°C). However, for optimum properties, laminates must be post-cured before being put into service. The molding should be allowed to cure for 24 hours at 20°C, and then be oven-cured for 3 hours at 80°C.

Packaging & Availability

Packaging Type
Packaging
Crystic Fireguard 70PA is supplied in 25Kg and 225Kg containers.

Storage & Handling

Storage Conditions

Crystic Fireguard 70PA should be stored in its original container and out of direct sunlight. It is recommended that the storage temperature should be less than 20°C where practical, but should not exceed 30°C. Ideally, containers should be opened only immediately prior to use.