Spec Mix Fiber Base Pre-blended Cement Base Coat

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SPEC MIX® Fiber Base Coat (FBC) is a dry, preblended cement based stucco engineered with proprietary admixtures and fibers that are computer batched for consistency and performance unmatchedby traditional field mixed stucco. SPEC MIX FBC has a custom blended sand gradation that increases the wall flexural strength while reducing cracking and crazing. The custom sand gradation also provides excellent workability and finishing properties for the applicator over a traditional field-mixed source.
Designed for both One Coat and traditional Scratch & Brown Coat systems, SPEC MIX FBC reduces shrinkage and increases long term durability and bond strength of the application. When gun or hand applied by a qualified applicator, SPEC MIX FBC is approved by Intertek as a one-hour fire rated wall when applied as a One Coat application, CCRR-0231. Submittals are available upon request for certification to applicable ASTM standards.

What separates SPEC MIX Fiber Base Coat from other stucco products is our international team of manufacturers providing sophisticated batching facilities ensuring SPEC MIX FBC’s total product quality control. No matter if the project is a single-family home, multi-family complex or a commercial building, quality assurance and applicator satisfaction is our objective.

Raw material selection is another key to making SPEC MIX FBC the industry’s top performing preblended stucco. SPEC MIX manufacturers consistently select and blend the finest raw materials available to eliminate contaminants entering the mixture that can lead to efflorescence, color variations, sagging and low strength. Because the quality of stucco sand varies from source to source, SPEC MIX product engineers uniquely focus on sands that comply with ASTM standards. Since the sand makes up as much as 70 percent of the final mix, using the best possible aggregates is imperative to manufacturing a high performance product. When the preblended SPEC MIX FBC is mixed and applied, the end result is a stucco wall with a tensile strength that reduces the risk of cracking and crazing in the system. As for application, the plasterer is equipped with a mix that provides superb workability and excellent finishing properties.