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Granite has been used for years as the filler but is not as good as quartz and requires more resin in the system. It leads to air voids and unfilled sections. Our CASTINITE epoxy/quartz is precisely...

You can purchase the correct formulated epoxy/quartz mis from Castinite – Castinite – Precision Polymer Concrete Castings

FEA of good quality epoxy/quartz castings is very reliable.

es, I have tried about anything you can think of with polymer concrete. It is important that the vibration compacts the material and does not induce air. You can manually compact the material using a...

Alignment of machine components used to take hours of precise hand scraping or shimming. Most often today people use precision epoxy grouts to set parts in very precise alignment. This requires...

The material can be ground or milled, if you know what you are doing. We have precision surfaces routinely milled to very precise tolerances

We will sell you the proper epoxy/filler mix, if you are in the U.S.

Epoxy castings are easy to modify, once you know how.

The epoxy is not the big problem. The aggregate dust, if it has quartz in it can cause silicosis. Always wear a mask approved for the dust that might occur.

Ben,

You can use shootpeen pellets as a filler, but if you only use one size filler you will use too much resin to fill the voids. You will end up with about 30% voids. If you can use various size...

We have used glass as a casting surface to replicate the flatness. The issues are using vibration to consolidate the mix and the fact the you are using sand as a filler. The vibration can crack the...

You are correct; fine quartz powder, not wheat flour.

We have our own epoxy formulation and use quartz aggregates from flour to 3/8"

I have been away from this thread for a while and am pleased to see the projects and related communications.

We made another 21 ft long grinding base, that through a unique technique, has extreme...

When Milltronics started, I designed a cast polymer base for their small miller. I then designed bases for some of thier other bed mills. We also supplied an epoxy grout to allow them to attach the...

Rocketflier,

We cast epoxy/quartz machine bases in the Cleveland area. Let me know if we can assist you.

Terry CASTINITE

John,

The green base is 10 meters long. When picked up on one edge, the deflection on the opposite edge was only .01mm. We cast the steel plates in and had them machined flat to .01mm flatness...

Anyone interested in obtaining the mixture components can email me at [email protected]. We have shipped finished bases and casting materials to India.

It is good to discuss theoretical castings, but I have been casting real parts for over 20 years, using a formula I developed. We cast a 18" diameter, 270 deg drum, to .001 ID TIR (AS CAST). We cast...

We have not done any weathering stability tests as the precision machine bases we make are use in controlled environments. We have confirmed long term stability inside.

Terry C

Steven,

You may recall the statue base outside the hotel in Cleveland that we cast several years ago. It still looks exactly like the surrounding granite, as it did when we cast it. Weather does...

That is correct, you cannot really compare the properties of epoxy and polyester. It is more like comparing stain to paint. Two different products for two different uses. It does depend on the...

John,

We are casting machine bases for gear grinding machines, OD grinders, lens grinders, pick and place machines, high speed printers and pump bases. Many of our former customers are either in...

John,

You are correct. Our main product is polymer concrete (epoxy/quartz) castings for machines. We also cast pump bases, highway products and even some synthetic granite countertops. In the US,...

I find the conversations in this section very interesting and appreciate everyone's comments.
The term mineral casting is commonly used in Europe, where this material is much more common. If I...

Steven,

Quartz aggreagte is as hard or harder and usually less expensive.

Terry

I have been working on the "perfect" aggerate mix for 26 years. We have tested granite versus basalt versus quartz. The mix depends on what properties are needed, what is available that is precisely...

This mixture will result in the need for extra epoxy, which will increase the cost of the mix and reduce the mechanical properties. The more fines, the more liquid required. The ideal mix will only...

We have developed cast epoxy-quartz technology that allows us to cast to very precise tolerances, without secondary machining. This means delivery is much quicker and cost much lower.

We can provide various epoxy quartz filler materials, much better quality and lower price than anyone.
~Castinite~, polymer cast, polymer castings, precisions machine grouts, polymer base pumps,...