Defiant 25 Description
How to use Defiant 25
Siraya Tech Defiant 25 Clear Silicone Mold-Making Kit
Silicone - Defiant 25
Defiant was developed with help from many prop-making professionals with the goal of reducing the complexity of post-processing while increasing the rate of successful silicone curing as high as possible.
After going through at least 30kg of silicones for testing, we have found the right combination. We dedicate Defiant silicone to many propmakers in our community who have helped us to grow.
What makes platinum silicone poisoning a tough nut to crack is that the issue is not caused only by just 3D printing resin but also due to how the silicone is made. This means to get the best results, one would want to find the right combination of silicone and resins. Defiant 25 is designed to be much more tolerant than common platinum silicone, but some resins are just better in terms of working with silicone and require a lot less post-processing.
Defiant 25 is Easy to pour and degas compared to other 25A silicone. It is thinner and thus making the entire process simpler even for beginners. You do not need an expensive professional vacuum chamber to remove bubbles and with a good pouring technique, you can get a bubble-free cure.
Extra Resistance to curing inhibition
Defiant 25 can resist sulfur poisoning due to UV Resin much better than common platinum silicone. With just 30 minutes of curing the printed part submerged in water, Defiant 25 can cure without issues. No coating is needed.
Siraya Tech Defiant 25 is a platinum silicone specially formulated for resin molds, wax molds, candle molds, soap molds, casting molds and architectural details, and statue and figurine making. It has a good balance of hardness and flexibility and is great for general molding applications and DIY projects.
Strong and Durable
Compared with others, Siraya Tech Defiant 25 clear silicone mold making has better flexibility and stronger tear resistance, and silicone molds have a longer life span and can be reused many times. More pulls per mold mean lower cost per cast. This silicone rubber can resist temperatures up to 200C.
Easy Mixing Ratio 1A:1B
Defiant 25 mold-making silicone rubber is easy to mix, mixing ratio of 1:1, self-degassing, and very easy to use. This liquid silicone mold can be easily used by beginners without any experience. Please feel free to contact us if there's any issue.
First: Mixing A part and B part
Mix Siraya Tech Defiant 25 clear platinum mold making silicone rubber part A and part B in 1:1 by weight (or volume)
Second: Stir well
Then stir the silicone mold making rubber for 5 minutes. Make sure to stir the liquid rubber mixture well for better results.
Third: Poring into the mold frame
Pour the fully stirred mold making silicone into the film frame, pot life is about 15 minutes and fully cures in 4 - 6 hours (ambient temperature at 25C)
Siraya Tech liquid silicone rubber is very easy to release from molds and the resulting molds are very flexible. Even beginners can make their own molds very easily.
Resin selection and post-processing (critical for working with 3D UV resin prints)
Many of you select Defiant 25 because you want to use it with 3D printing UV resin. Defiant 25 works best with our Build resin, followed by Fast resins and Blu resins since no coating is no needed. Using those resins with Defiant 25 silicone, we recommend the following steps:
Postprocessing (Critical for curing success)：
Step 1, Right after printing. Clean with 90%+ IPA or Ethanol to remove the uncured resin either by ultrasonic or by hand. The use of a hair-based brush can really help with thicker resins. The ultrasonic bath should be about 5 minutes. You may want to use 2 baths, one dirty bath and then one clean bath. The key is to remove all uncured resins from the print.
Step 2, Dry completely, best to use a hairdryer in this process.
Step 3, Find a clean bucket, pour water, and submerge the print in water.
Step 4, Cure the submerged print with water for 30 minutes while it is submerged in water. Do not use the sun for curing, best to use a UV curing light fixture.
Step 5, Dry the print completely. Best to use a low-heat oven to assist. (set to 45C for 10 minutes).
And the print is ready for use with Defiant 25 silicone.
We cannot make sure of performance when using Defiant 25 with other resins, including 3rd party resins. They may work with Defiant but we do not have test data for it.
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