Jesmonite AC300 Starter Kit - Industrial Plasters
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  • Jesmonite AC300 Starter Kit

  • Intro Pack for Jesmonite AC300

  • JES1400

Product Description

Jesmonite AC300 is a water-based, two-component, acrylic polymer/mineral resin system. The system is suitable for a wide range of casting and laminating applications where the end user wants to reduce the many risks associated with conventional solvent based systems. A range of ancillary products including decorative and functional fillers, control chemicals, pigments and glass reinforcements are also provided making the material extremely versatile. The material is designed for internal use only and is fire-resistant and has achieved a Class '0' Fire rating. The material is an economy alternative to Jesmonite AC100 where external durability is not essential.


This starter kit contains: - 2.5kg AC Powder - 1kg AC300 Liquid - 65mm Mixing Blade - 200g Bright Red Pigment - 200g Bright Yellow Pigment - Full Instructions and User Guide.



Mix Ratio 2.5:1 parts Powder to Liquids ratio by weight

Wet Density 1845 kg/m3

Dry Density 1745 kg/m3

Initial set 15 – 20 minutes (18°C, No Retarder)

Expansion on set 0.15%


Other Properties


Compressive Strength 30 – 35 Mpa

Tensile Strength (UTS) 20 – 25 Mpa

Bending Elastic Limit (LOP) 15 – 20 Mpa

Bending Strength (MOR) 50 – 65 Mpa

Youngs Modulus 5 – 6 Mpa

Impact Strength (Charpy) 30 KJ/m²

Moisture Movement <1%

Fire resistance B.S.476 Part 6&7 – Class ‘O’

Freeze/Thaw resistance Excellent -Test specimens undamaged


Application Areas


Jesmonite AC300 is suitable for both cast and laminated decorative mouldings, and with the inclusion of suitable glass reinforcements can be utilised for lightweight, high-impact panels. It also provides a Class 1 fire resistant surface coating for expanded foams for theme parks, theatre props, sculpture etc. The material provides users with a water-based alternative to standard Glass Reinforced Polyester for rigid moulds and tooling.


Key Attributes


Bulk supplied material to reduce costs and maximise transport efficiency

General purpose material with a wide range of applications

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