Rigid or Unplasticized PVC Fence and Decking With Specialty Minerals Precipitated Calcium Carbonates
and decking are demanding applications for PVC because of the high
level of product performance required to displace more traditional
materials such as wood, steel, and aluminum. PVC offers a lightweight,
maintenance-free, cost-effective alternative. Delivery of these benefits
requires careful attention to formulation and processing issues.
Precipitated calcium carbonate (PCC) from Specialty Minerals Inc. (SMI)
delivers superior impact resistance, dimensional stability, and surface
appearance. Whatever specific balance of properties you are searching
for in PVC, there is a SMI PCC to help you reach your goals. See our
product selector chart to make your choice or, for a customized
recommendation, contact us with the details of your specific
Specialty Minerals Precipitated Calcium Carbonates in PVC Fencing
strength is a key requirement in fence and deck parts but compounders
striving to meet these requirements must watch formulation costs as
well. SMI’s Ultra-Pflex®, and Calofort®
S PCCs provide the added edge formulators need to balance cost and
impact strength by allowing them to reduce or eliminate rubber-based
impact modifiers. In addition, PCCs do not suffer the low-temperature
fall-off in impact strength typical of rubber-based modifiers.
Super-Pflex® 100 is the PCC of choice where the compounder is interested in high-resin extension ratios within current formulations.
profile dimensional stability is another requirement in fence and deck
parts where exposure to sunlight raises part temperatures to critical
levels. Built-in stresses from extrusion processing can promote
dimensional instability where high heat levels are possible. The small
particle size of Ultra-Pflex®, and Calofort® S PCCs promote melt homogeneity in profile compounds, reducing long-term dimensional changes. Ultra-Pflex® and Calofort®
S PCCs offer added benefits including high-surface gloss and smooth
appearance to critical appearance-grade parts. Fence and deck markets
are growing rapidly and SMI’s broad product line of calcium carbonates
will help you offer the highest level of cost-competitive, high-quality
Download the SMI publication “The Effect of Calcium
Carbonate Size and Loading Level On the Impact Performance of Rigid PVC
Compounds Containing Varying Amounts Of Acrylic Impact Modifier” by clicking here or download the publication “Adding Value to PVC Formulations with Ester Lubricants and Fine Calcium Carbonate“ by clicking here.