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AC100 Base
Bought 20+ times in the last 30 days
Price range: € 8,81 through € 78,35 incl. VAT
Unit price: € 3,13 – € 43,08 / kg
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Product details
What you need with it
AC100 base powder only. Mix it with AC100 liquid at 1 : 2,5 (liquid : base, by weight). Buying a set gives you both, pre-measured.
Not included: silicone mould, digital scale, mixing cup and stick, pigments, sealer.
How to use AC100
Five steps from bag to finished cast.
- Weigh 1 part liquid to 2,5 parts base on a digital scale. Not sure how much? Weigh the water your mould holds and use the calculator.
- Mix for 2 to 3 minutes until smooth, keeping the stick under the surface to avoid air.
- Colour (optional) with up to 2% water-based pigment, or fold in terrazzo chips.
- Pour slowly and tap the mould so air bubbles rise. Working time is short, so prepare everything before you mix.
- Demould and cure after 30 to 40 minutes, sand while the cast is still soft, let it cure for 24 hours, then seal.
AC100, AC84 or AC730?
Same way of working, different look and setting time. Read the full comparison.
| AC100this product | AC84 | AC730 | |
|---|---|---|---|
| Finish | Smooth, white; takes any pigment | Smooth grey or a concrete look | Natural stone look in 11 colours |
| Mix ratio | 1 : 2,5 | 1 : 5 | 1 : 5 |
| Demoulding time | about 30 min | about 2 h | about 4 h |
| Where to use | Indoor (seal it for splashes) | Indoor and outdoor | Indoor and outdoor |
| Best for | Indoor homeware: trays, vases, candle holders and decor | Versatile all-rounder: smaller objects, garden or bathroom pieces | Tough, textured stone pieces that live outside |
| Skill level | Beginner | Beginner-friendly | Advanced |
All three are fully cured after 24 h and take Jesmonite® pigments. New to casting? Start with AC100.
Questions & answers
How much Jesmonite® do I need for my mould?
Fill your empty mould with water, pour it onto kitchen scales and weigh it in grams (1 ml of water is 1 g). Add about 10% for spare. For AC100, divide that figure by 2 for the liquid and multiply the liquid by 2.5 for the base. In a hurry? Use our free Jesmonite® calculator.
Why did my cast come out chalky or soft?
This is nearly always a mixing problem, not the material. Too much liquid makes a soft, chalky cast, while too little makes it thick and fast-setting. Use accurate digital scales and stick closely to the correct ratio for a hard, clean result.
Can AC100 be used outdoors?
No. AC100 is intended for indoor decorative pieces. If your project needs to live outside, choose AC730 or AC84, which are both weather-resistant and suitable indoors and outdoors, and seal the finished piece appropriately.
Is Jesmonite® waterproof?
Not on its own. Jesmonite® is porous and will absorb water, so seal it before it comes into regular contact with water. An acrylic sealer (satin or gloss) suits AC100; a penetrating or Flexiguard sealer is made for the cement-based AC730 and AC84.
Is Jesmonite® food safe?
Jesmonite® is not certified food-safe. It is a decorative casting material, and the sealers used on it are not food-safe either. Use trays, bowls and dishes for dry, decorative use rather than serving food directly on the surface.
What customers say
4.5 out of 5 on Trustpilot, 32 reviewsFast delivery, great products! Good packaging!
First time ordering and it was great! Products as described and arrived quickly, will definitely be ordering again.
Paying wasn't a problem, the product was as it should be, the delivery was no problem and in a reasonable timespan. That's as good as I can wish for.
Reviews are collected by Trustpilot after delivery. Read all reviews on Trustpilot.
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