When a filler is used in an adhesive formulation, it is typically meant to take up space. But the space it occupies has a crucial function, making it a role player and a key component to your products success. A number of functional fillers are available for various applications, including Marble Powder and others. Marble Powder is available in particle sizes ranging from D50 3.0 Microns to large white decorative chips. Marble Powder is a relatively soft, insoluble mineral that is widely used to reduce cost and to control shrinkage in adhesive formulations.
We provide Marble Powder in the widest variety of particle-size distributions. In high-end formulations, Our Marble Powder helps the product maintain its viscosity, physical strength and properties. In commodity formulations, it can replace other more-expensive ingredients, improve gap-filling properties and modify viscosity.
Marble Powder improves the base properties of polyvinyl chloride by adding stiffness to the polymer matrix and improving impact resistance as particle sizes become smaller. Marble Powder also improves compounding performance by helping disperse various ingredients into the Marble Powder blend and improves processing by making polymer flow more homogenous. The relationship between a Marble Powder particle size and the impact strength of the finished rigid PVC part also applies to an extruded pipe and injection-molded fittings. The object is to produce an acceptable part at the lowest possible cost.
This is achieved by minimizing the level of ingredients that add cost to the PVC formulation, such as impact modifier. The ideal is to eliminate the use of impact modifier. This can be achieved in larger diameter pipes using a formulation containing a 2-3 micron Marble Powder. The impact specification is usually more difficult to meet in a small diameter pipe, thus a finer Marble Powder must be used usually in the range of 1-2 microns. The size of the filler used can have a dramatic effect on the impact strength of a PVC compound. We provide very wide range of coated Marble Powder and uncoated Marble Powder which suits all PVC pipes and compounding applications.