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Jesmonite AC100 Starter Kit / Water Based Casting Resin System

(Inc. 20% VAT)
(£25.00 Exc. VAT)
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(1 Review)
10 in stock
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*Image(s) For Illustration Purpose Only


Kit Contents:

  • Jesmonite AC100 liquid - 240g
  • Jesmonite AC Base Powder  - 600g
  • 3 x Assorted Pigments (Image for illustration purposes, Colours vary from batch to batch)
  • 2 x Re-Usable Coaster Moulds
  • Mixing Sticks, Gloves & Instructions

Jesmonite is a versatile range of water-based, solvent free composite materials ideally suited to the creation of decorative mouldings and glass reinforced laminates. These materials have a range of unique properties, which contribute to strength, durability, non-toxicity, and the ability to comply with many of the necessary test requirements of the construction industry, specifically those in regard to fire performance and impact resistance.

Jesmonite AC100 is an Acrylic Composite material supplied in two parts, a powder and a liquid. It is suitable for both decorative castings and glass reinforced laminates, and can be pigmented using the Jesmonite range of water-based pigments. It is also possible to add a range of decorative and functional fillers in order to achieve a wider range of effects and to meet a broader spectrum of specifications.

Jesmonite AC100 can be used both internally and externally, although external use requires the application of a suitable sealer or external paint system for long-term exposure. It is fire-resistant, having achieved a Class '0' fire rating under UK Building Regulations BS476 (Parts 6&7). Due to its solvent free formulation, AC100 can be cast without damage to rubber moulding compounds, and without limitation to scale. It is also dimensionally stable due to low exothermic reaction, and produces a small amount of expansion on set (1mm/ linear metre).

AC100 is supplied in separate containers of liquid and powder, and mix ratios are variable to allow for both decorative and functional fillers.

Normal casting and laminating requires a mix ratio of 2.5 parts AC100 Powders to 1 Part AC100 Liquids, by weight.

A full range of ancillary materials designed specifically for optimum compatibility is available from our store. These include Thixotrope, Retarder, Pigments, and Glass Reinforcements

Products benefits:

  • Superior cast and glass reinforced mouldings
  • Solvent free & no VOC’s
  • Fire resistant
  • Lightweight
  • Impact resistant


  • Easy to use, adaptable material for all moulding applications.
  • Suitable for decorative cast objects, mould cases, wall panels.
  • Supplied with a range of ancillary products including glass reinforcements, pigments, fillers, and control chemicals to adapt the material to the widest range of applications.
  • The ultimate chameleon material – can replicate virtually any surface, colour, or texture.

Jesmonite AC100


Mix Ratio By Weight

2.5 Powder : 1 Liquid

Initial Set Time @ 18°C

15 - 20 mins

Expansion On Set


Compressive Strength

25 - 30 MPa

Tensile Strength (UTS)

25 - 30 MPa

Freeze / Thaw Resistance

Excellent ( Test Specimens Undamaged)

Wet / Dry Resistance

50 Cycles (Test Specimens Undamaged)

Jesmonite offer a shelflife of  6 months from date of production on the containers, however with the processes involved from production date to delivery from the manufacture to MB Fibreglass its not uncommon for the materials to have 3 to 4 months of a shelf life left on the goods on arrival. With an allowance for stocking the goods at MBFG there will be occasions that the materials may only have 3 months of shelf life left. If for any reason kits are left with a shorter than 3 month shelf life we will make contact to discuss suitability of the products remaining shelf life before dispatch.

Technical & Safety Sheets
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1 Review:

I'm Jesmonite Starter
19 October 2017  | 

I have recently ventured into mould making and casting and was looking something safe and easy to use. This was recommended to me as it's non-toxic and the kit included a bit of everthing to let me trial and test the product in different ways. Really happy with the results this product produces. Will be buying more very soon.

8 of 8 people found this review helpful.
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