Pros & Cons
Pros
Startso world rubber is an rtv platinum cured rubber. Works great with mica powder and for casting us resin. Molds are strong and more dense than so many other silicones that i tried, which seemed very soft and flimsy. White pillar mold is the large m... Read More
This one beats them all and at a great price. I'm hooked. Very pleased with the product and will buy again.
Cons
This silicone is way too tacky and sticky when cured. Even after more than 24 hours it remains a viscous liquid. I don't like that it doesn't cure fast.

Highlights
Quality
Very pleased with the product and will buy again.
I don't have anything bad to say about this product.
It gets broken and i lose a good bit of the product before i even receive it.
Too expensive for the amount of product
Price
A great purchase and well worth the price.
Low bubblesenough time to work without setting to soonthe recent price $59.
Shipping
But amazon has got to stop shipping things like this in a flimsy plastic bag.
Just need those bottles sealed better for shipping!
Packaging/appearance
You could see how air got into the bottles and part of the blue solution was hardening in the bottle.
I cast a single small part, which turned out great, and shelved the bottles.
Competitiveness
I decided to try this despite its generic brand because of the low price.
I bought this product to cast a replacement keycap for a vintage smith-corona typewriter.
Overview
- How are reviewers describing this item?
easy, still, mixed, made and good. - Our AI detects a high amount of irrelevant reviews for this listing. A number of the reviews included in this product may belong to other variations, editions or versions that may not be representative of the current product being sold.
- Our engine has profiled the reviewer patterns and has determined that there may be deception involved.
- Our engine has determined that the review content quality is low.
- Our engine has analyzed and discovered that 61.2% of the reviews are reliable.
- This product had a total of 1,441 reviews as of our last analysis date on Nov 4 2022.
Helpful InsightsBETA
Posted by a reviewer on Amazon
Second mold didn’t come out all that well still a issue with bubbles but i still was able to get a clean mold
Posted by a reviewer on Amazon
The wax i was using was buoyant and floated
Posted by a reviewer on Amazon
No vacuum chamber or degassing chamber needed
Posted by a reviewer on Amazon
Just mix equal amounts by volume not weight mix thoroughly this is the most common mistake not mixing the 2 components properly its also very important to often scrape around the mixing cupwall so the material sitting against the insidewall is also mixed well
Posted by a reviewer on Amazon
If not the last bit thats coming out of the cup will be that material stuck directly to the walls causing the top of the mold to stay sticky
Posted by a reviewer on Amazon
Everything was alright except part a was leaking and it burst all over the box and i’m trying to figure out how to fix it
Posted by a reviewer on Amazon
I made a 1 to1 human skull mold
Posted by a reviewer on Amazon
So as you might guess its rather big
Review Count History
Price History

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