CONSTRUCTION EQUIPMENT
Factors to Consider When Switching Materials in Dispensing Equipment

Before changing materials, which are to run in a meter, mix and dispense system the following criteria must be taken into account to ensure a smooth transition. Always consult the factory before switching materials.

Please consider the following:

• Does the new product differ in viscosities and if so will the equipment be suited for the difference?
• Differences in compressibility of materials. The system will need for the pumps to be correctly phased if there is a difference in the compression of the materials.
• Are the ratios the same, if not what changes are going to be required? Are changes to hoses and outlets going to be required as well as the pump configuration?
• Will the residue of the old materials react with the new product?
• Will the product be compatible with the seals and O-ring material in the equipment?
• Is there a difference in reaction time?
• Differences in how materials react to a change in temperature.
• Comparison in what type of static mixer is required.
• Will the solvents that are required to clean the new product be compatible with the equipment?
• Is the new product more or less hazardous?
• Is there a difference in moisture sensitivity? If so, does a desiccant dryer need to be added for the new product?