Specializing in the production of glass kiln refractory thermal insulation spray coatings, sealing materials and building thermal insulation materials
Specializing in the production of glass kiln refractory thermal insulation spray coatings, sealing materials and building thermal insulation materials
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Can Refractory Castable Be Mixed by Hand?
1. Mechanical Mixing Recommended
Conventional castables, especially low-cement and high-performance castables, should be mixed with a forced mixer, generally for at least 3 minutes, to prevent segregation and performance loss.
2. Manual Mixing in Special Cases
Manual mixing may be used when mixing equipment is unavailable or the installation volume is small. Water addition should follow the product instructions, and accelerators or mix proportions should not be changed arbitrarily.
3. Precautions for Manual Mixing
Use clean tools and containers during manual mixing, strictly control the water dosage, thoroughly mix the dry materials before adding water, and complete installation promptly. For special low-cement or fast-setting products, always follow the manufacturer's installation instructions.
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