Refractory Products
Refractory Plastics
The Workability of Plastics Makes them Ideally Suited for Refractory Applications
Repairs are a necessary part of refractory applications, and refractory plastics are especially useful for many needed repairs. They work with high strength and under the high temperature of industrial furnaces. At RSI, we offer an array of air set and curable plastic refractory material ready to use for repairs, linings, and other refractory requirements.
Refractory plastics are pre-dampened and ready to use. Form them into any needed shape using a ramming hammer. Refractory plastics are available in 50-55 lb. square units. Air-set plastics and curable plastics are easy to work with.
If you’re looking for refractory plastics, reach out to us today. We offer high-quality, durable refractory plastics that are industry-ready and simple to use.
Refractory Plastics: Ideal for Repairs
Refractory plastics are monolithic materials, like cement castables. The difference with refractory plastics is that there’s no water required. Instead, the plastics arrive pre-moistened, so all you need to do is shape them into your needed form.Air-set plastic refractory material requires no curing, making it especially straightforward for emergency repairs. Adding molten materials to damp castables is a hazard. Air-curable refractory plastics are fast, easy to work with, and safe.
Although you’d rarely use plastic material for kiln and furnace linings, there are some instances where plastics do the job well. In most cases, plastics are ideal for repairs and ready to go right out of the box.
Some of the common repairs include:
- Boiler work
- Forge furnaces and various heating furnaces
- Incinerators
- Ladle linings
- Ladle repairs
- Liner repairs and more
Plastics used in refractory are typically composed of alumina and silica; some applications require special compositions like alumina and corundum. Non-wetting plastics are used in repairs for melt furnaces and offer a great solution for applications where there is direct contact with molten metals.
Refractory plastics fall into the following basic categories:
- Plastic clay:
- High-duty fireclay
- Super-duty fireclay
- High alumina refractory plastics:
- 60% alumina
- 70% alumina
- 80% alumina
- Siliconized carbide
The bases for refractory plastics are under phos-bonded, mullite-bonded, and air-set subsets. No matter which refractory plastic option you need for your application, one of the most significant benefits of using plastic in refractory is that it offers unparalleled versatility and performance. The phos-bonded plastics, in particular, offer volume stability—staying consistent and holding volume during the cure-out process.
The advantage of plastics is that they’re easy to form into any shape. It can fit into small areas, and it’s pliable and resistant to heat and chemicals; many plastic refractory materials are abrasion resistant, too, and can hold up with excellent strength in a wide variety of applications.
Plastic also offers thermal shock resistance. Air setting is convenient and efficient, with no 24-hour hydration period required. We offer curable options and heat setting plastics (phos-bonded) as well. Plastics hold up, are safe, and are easy to use. Plastic refractory materials are ideal for emergency repairs—patch cracked equipment and perform rapid repairs in a short time, with only a few steps. Plastic refractory materials save you time and money while offering a safe, flexible solution for refractory repair with optimum results.
We can help you select the right refractory plastic for your particular repair. As an exclusive supplier of refractory castables and plastics from HarbisonWalker International and Mount Savage Materials, we’re proud to offer the highest-quality refractory plastics in the United States. We provide solutions for an array of refractory applications and needs. Reach out today to explore refractory products at RSI.
