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KRISTAL FLEX – 6.65kg is a water clear, low viscosity, flexible casting epoxy. It is UV stabilised, has good de-airing characteristics so castings cure virtually “bubble free”.

Applications for KRISTAL FLEX – 6.65kg include

  • Doming of self-adhesive labels/stickers.
  • Fridge magnets.
  • Name badges.
  • This resin can also be used for encapsulating electronic components.
  • Encapsulating of LED light strips.

Kristal Flex Doming Resin - 5kg (Part A)


Availability: 2 in stock

Kristal Flex Doming Hardener - 1.65kg (Part B)


Availability: 2 in stock

Safe & Secure

Safe & Secure Shipping to all South African addresses.

When Do I Get It?

Shipping time is 2 - 5 business days. Excludes weekends & Public Holidays.

100% Secure

We ensure secure payment with PEV on all orders

In-Store Sales

Shop in-store at AMT Composites in Johannesburg, Cape Town & Durban.

  • Shipping may only be to a physical address within the borders of South Africa. No P.O Box’s allowed.
  • Shipping to outlying or remote areas like farms and game reserves may attract an additional fee.
  • The delivery time to city areas is usually between 2 and 5 working days*. This excludes weekends and public holidays. *Reckoned from time of dispatch to time of arrival to client. This is an estimate and not guaranteed.
Courier Service
We use 4 courier companies for delivery. With sophisticated track and trace equipment, you can pinpoint exactly where your parcel is, from the moment it is dispatched by us, until it’s safely handed over to you the recipient. Your parcel is well packaged and wrapped before delivery. All parcels can be insured for the journey to your door.

We charge a weight based shipping fee.

  1. Standard Shipping 0 to 5kg – R99.00
  2. Shipping Shipping 5.1 to 10kg – R118.00
  3. Standard Shipping 10.1 to 15kg – R140.00
  4. Standard Shipping 15.1 to 20kg – R180.00
  5. Standard Shipping 20.1 to 40kg – R220.00
  6. Standard Shipping 40.1 to 80kg – R250.00
  7. Standard Shipping 80.1kg and more – R400.00

Shipping rates are provided at checkout.

Our delivery service only runs from Monday to Friday. Saturday morning deliveries can be done by special arrangement only and at an additional charge. Please contact us to arrange. We reserve the right to re-quote the delivery fee should this become too expensive.

At AMT Composites we want you to be 100% happy with any purchase you make from us.

Changing your Mind / Right to Cancel

If you change your mind for any reason, goods can be returned to us for a full refund if notified to us within 7 days of delivery; you have a further 7 days to dispatch the goods for their return to us. Goods returned after 7 days will incur a 15% restocking fee of the items being returned.

NO GOODS manufactured or sold by Advanced Materials Technology Pty Ltd will be accepted for a credit if returned after one (1) calendar month of original invoice date.

To return goods that are not faulty (i.e. because you changed your mind) they must be unused and, in the condition, they were delivered to you in. This does mean that, unless found faulty, we are unable to accept returns for:

  • Opened containers of resin, hardener, silicone or chemical release agent, unless found to be faulty or defective.
  • Unrolled and improperly re-rolled fabrics, unless found to be faulty or defective.
  • Any product that you have subsequently cut, shaped, broken or modified, unless found to be faulty or defective.

Refund of Delivery Charges (Cancelled Orders)

If you return an order in its entirety, then your outbound delivery charges will also be refunded (for orders within the South Africa’s Local Area’s.

If you return only part of an order, then the outbound delivery charge refund will be calculated based on the total postage cost of the original order (using standard service) minus the cost to send the items you are keeping (using standard service). Due to the way that shipping costs are incremented, this will often result in no delivery charge refund being due.

Faulty or Defective Goods

Any goods found to be faulty or defective and notified to us within 7 days of delivery can be returned to us for a full refund.

Refund of Delivery Charges (Faulty/Defective Goods)

If you are returning faulty or defective goods, then your outbound and return delivery costs will be refunded in full (for orders from within South Africa’s Local Area’s.)

In the event that you are returning faulty or defective goods which were ordered as part of a larger order then the outbound delivery charge refund will be calculated based on the total postage cost of the original order (using standard service) minus the cost to send the items you are keeping (using standard service).

Please check the box to acknowledge our return’s policy, by doing so you agree to our Return’s Policy of AMT Composites stated above.


Get true expertise & assistance. Speak with one of our professional consultants in Johannesburg, Cape Town or Durban. Call 011 392 4232.

Processing KRISTAL FLEX – 6.65kg

  • Materials should be stored and used at an ambient room temperature of 23°C with relative humidity below 85%.
  • Warmer temperatures will reduce pot life.
  • Pre-warm resin and hardener to 28°C – 30°C prior casting to minimise air bubble entrapment, then leave to cure at 23°C – 55°C. (Warmer temperatures will reduce cure time)
  • Cold temperatures below 18°C may cause cure inhibition.
  • Kristal Flex can also be vacuum de-aired to minimise air bubble entrapment.
  • A propane torch can be used to dissipate surface air bubbles. (Move the torch/open flame over the surface of the resin, keep the torch moving so not to burn the surface.)

Applying a Release Agent

Ease Release 200, 205 or Ram Wax can be used to effectively release cured epoxy castings to prevent adhesion on non-porous surfaces like metal, glass, melamine, or acrylic sheeting.

Adding Colour to KRISTAL FLEX – 6.65kg

KRISTAL FLEX epoxy can be coloured by using Epoxy Pigments, So-Strong Pigments or UVO pigments and some amazing effects can be achieved by using metallic & pearlescent powders or phosphorescent glow in the dark powders like Glow Worm.
IMPORTANT: Epoxy resin systems are exothermic, meaning that heat is generated when resin & hardener are mixed and begin to cross link. Larger volumes will create more heat and if mixed and cast in larger volumes than indicted, can generate enough heat to melt plastic mixing cups, burn skin or even ignite combustible materials. If a batch of material begins to get excessively hot from the exothermic reaction, move to an open-air environment and be careful not to breathe fumes. Please note that even though these materials are UV stabilised to promote “anti-yellowing”, ambering or yellowing will occur if continually exposed to harsh UV environments.

Pot Life and Curing Time

Epoxy casting resins are mass-sensitive, larger volumes of material will generate higher temperatures through the exothermic reaction which will reduce pot life & cure time. Thinner castings will generate less heat and will take longer to cure. Ambient room temperature will also play a significant role in the pot life & cure time. Typical cure time at 23°deg C 16 hrs.

KRISTAL FLEX – 6.65kg Hardened Properties

  • Withstand voltage KV/mm 20
  • Electric rate 1KHZ 3.7
  • Water absorption %24Hour <0.1
  • Bending strength Kg/mm2 55
  • Volume resistance Ohm3 1×1015
  • Induced electric loss 1KHZ 0.42
  • Compressive strength Kg/ mm2 3.4
  • Impact strength Kg/ cm/cm2 6.8
  • Surface resistance Ohmm2 5X1015
  • High temperature resistance ℃ 100

The above performance data is typical data measured in a laboratory environment with a temperature of 25°C and a humidity of 70%.

Safety and Handling

Epoxy resins and hardeners are chemicals and the below safety precautions should be practiced when using these materials:

  • Work in an environment with adequate ventilation and avoid breathing fumes (a NIOSH approved respirator is recommended).
  • Use protective Nitrile gloves to avoid skin contact.
  • Barrier creams can also be used to minimise skin contact.
  • If accidental skin contact occurs, use soap and water or hand cleaner to wash hands (never use solvents).


  • Measure out part A – resin and part B hardener as indicated using an accurate digital gram scale.
  • Mix resin and hardener together thoroughly for 3 – 5 minutes using a flat paddle mixer, also scraping the sides and bottom of the container several times.
  • Pour mixed material into a clean container and mix for another 60 seconds before casting. (This is a “mix pour mix” technique that ensures that part A & B on the sides and bottom of the container are properly blended so that there are no tacky spots or streaking in the cured casting).
  • Allow adequate time to fully cure before using.


  • Applying onto oily or contaminated surfaces.
  • Applying onto damp or wet surfaces.
  • Whipping and beating material while mixing, this will introduce additional unnecessary air bubbles.

Removing Epoxy

Uncured epoxy can be removed by scraping as much material as possible from the surface using a paint scraper, acetone or isopropyl alcohol can be used to remove the residue that is left.

Weight 6.65 kg
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