top of page


Skinsafe, Regular Set Chromatic Alginate + Alginate Retarding agent. Mixing Time without Retarding agent - 45 secs. Working Time - 2 min.


What is Alginate and where is used for?

Skin Safe, Chromatic (colour changing) Alginate is a non-toxic, non-allergenic moulding material (seaweed plant extract), which is safe to use on all areas of the body. Its chromatic feature ensures ease of use as it changes colour during the mixing and setting process giving you a visual indication at each stage of the process. Three colours, Purple, Pink and White - it's a three working periods.

About our Alginate


100% High grade.

100% produced and packed in UK specially for us. Not only quality and safety!
This listing for Regular Set Alginate.
Regular Set Alginate has longer working time than Fast Set Alginate. More time - no need to rush, less panic.
English Instruction.
Spearmint flavour.
Shelf time 2 years from date of manufacturing (please see small batch label on the bag).
Low temperature will increase the setting time and higher temperature will shorten the setting time. For best results use water at temperature range 21-23C (exemptions for retarding agent).


Water Temperature - 23C

Mixing Time - 45 secs

Working Time - 2 min

Above figures are based upon mixing with distilled water. Using tap water for mixing has no significant influence on working time or overall setting time.
Working time and setting time has 5 sec and 10 sec temperature dependence effect respectively for each 2C departure from 23C.
Mix Alginate vigorously in a suitable bowl.

NOTE: If retarding agent in use, setting time given above has changed!
Ambient temperature also affecting setting time of Alginate. The best indicator is a colour. If mixture turning in to pale pink colour - immediately insert your moulding object into the moulding mixture.
Using of tap water is on your own risk. Please use distilled water as recommended (usually at Tesco or Asda store 2.5 Ltr).

Special Offer!
20gr of Alginate retarding agent

Allows to extend working/mixing time of Alginate

Retarding agent allows to double mixing/working time of Alginate. No rush and no worries if warm water in use or large working area.
Handy if casting torso or belly. One of the characteristics of Alginate is that the thicker the mix, the faster it sets. So if you mix it too thick, it may set up too fast before you can apply it. While casting torso or belly, mixture should be thick (hard consistency), as could slide off of the body if soft mixture. You need a thicker mix so that the Alginate stays in place as it is applied. So, you need extended mixing/working time of Alginate - Retarding agent its a solution.
If you needed for extra time to apply on large areas of body.
Useful if large amount of Alginate in use. Just imagine, you need mix 1.5 Ltr of mixture and add your molding object in 45 secs (for a full 500g bag of alginate you would add 1500ml of water).
Handy in case of newborn 3D casting. It is nearly impossible to do hand/foot moulding on newborns and babies up to 3 years of age, because newborns and babies up to 3 years of age don’t understand and they don’t keep still long enough, they wriggling (mostly) while you taking moulding of their limb. If they wrigle limb that critical moment, those few sec when gel settling, moulding will be failed. In such cases only asleep babies it's a solution. But asleep babies are very sensitive to water temperature. Working temperature of Alginate (21/23°С) too cold and can awaken baby if you taking moulding with asleep baby, and your process can be ruined. If we increasing water temperature up to body temperature (36°С), suitable for asleep babies, Alginate working/mixing time reduced significantly (up to 10/20 secs) - no time to mix properly and put limb in to gel. In this case we have solution - ALGINATE RETARDING AGENT, which allows to increase working/mixing time twice.

20g per 500g of Alginate approx. doubles setting time.
Dissolve in water - done!
Dosage can be adjusted to suit. Please use enclosed instruction.

Now, each pack (500gr) of Alginate included 20gr of Alginate retarding agent (if retarding agent option chosen).

Mixing Ratios

Please follow included instruction.
You can add more water than this ratios, which will thin the mix, which will slow the setting times, a thinner mix helps to reduce air being trapped in the mould. If spreading (face or belly casting) the alginate onto a model it is not recommended to add more water than the standard mix ratio as it becomes too difficult to spread when thin.
For further information, please refer to included instruction.

PLEASE NOTE: Actual amounts of materials will vary from individual to individual. User assumes full responsibility for own calculations of material needed.

Approximate Alginate Quantities


  • 100g in a suitable container is enough for a baby hand or foot. The number of casts depends on age of baby, the skills and size of moulding container in use.
  • 500g of alginate would be enough for a medium size hand or breast. Enclosed areas of the body such as the breasts will require a modroc bandage to encase the moulding to maintain the moulding shape.
  • A large adult male hand will require approx 675g of alginate.
  • An adult foot would require 2 x 500g, however this amount is dependent on the size of the foot and the container used.
  • A face moulding would require 500g alginate and again a modroc bandage would be used to support the moulding.
  • A full neck to crotch pregnant belly would require 4-5 bag, if attempting this cast ensure you have successfully cast small areas as this is a very demanding cast. Torso up to 3 bag. A large amount of modroc bandages would be required to support this large moulding.
  • A bum cast from mid back to upper thighs would require approx 4 bag of alginate and approx 8 rolls of modroc to support moulding.

As with all fast setting moulding materials preparation is crucial, have all quantities and materials measured and ready for use. Ensure that the model is aware before starting of how they should pose, perform a dry run to avoid material wastage, if casting hands ensure model is aware not to curl fingers as air may get trapped underneath the fingers.
If moulding hands or feet, you can use polythene bags or drink bottles or a plastic containers. The advantage of using plastic containers is, that the container will in turn become a support jacket for the mould however you do use more material with a container than plastic bags.
If casting onto any area with long hair, use a petroleum jelly such as Vaseline to act as a barrier, do not use the petroleum jelly on non hairy areas such as breasts as the alginate will slide off.

Caution: If you want to do a face cast using Alginate, never try it for the first time without professional guidance. There can be a real danger of inexperienced users accidentally blocking the model's airways.



ALGINATE - Belly Casting, Face Casting, Torso, Breast Moulding Casting Powder


    Free delivery within UK


    Please understand, we aren't part of Royal Mail, we cannot guarantee speed and quality of third parties.

    Thank you for your support and patience.

    Pictures for illustration purpose only, can slightly vary depend of kit. Description specify what will you get.

    We make every effort to display as accurately as possible the colors, features, specifications, and details of the products available on the Site. However, we do not guarantee that the colours, features, specifications, and details of the products will be accurate, complete, reliable, current, or free of other errors, and your electronic display may not accurately reflect the actual colors and details of the products.

    bottom of page