--- title: "Combimix_FF830_PDS_US" url: https://stacklist.com/card/71ea23a8-fcb2-498c-bf58-16275316efa9 stack: https://stacklist.com/c/business/stack/6ef6e379-b702-4156-8fa8-00346fb192a1 summary: "FF 830 is a quick-drying finishing underlayment designed for skim-coating, smoothing and leveling prior to floor covering application on concrete, tiles, and other substrates. The product requires substrate priming with PP 600, proper mixing ratios, and controlled curing conditions between 50-77°F for optimal results." tags: "floor-underlayment, finishing-product, construction-material, datasheet, surface-preparation, concrete-leveling, combimix" key_entities: "Combimix AB (organization), FF 830 (technology), PP 600 (technology), Bålsta (location), Sweden (location), finishing-underlayment (concept), substrate-preparation (concept)" classification: "reference" content_hash: "sha256:81eb613a11f6c55e0ca43103e5df952833fe93006a7d9886248c51649798589c" acp_version: "0.2" token_counts_approximate: 1158 visibility: public agent_accessible: true status: "final" --- # Combimix_FF830_PDS_US Combimix datasheet Information contained herein or otherwise administered by Combimix or its affiliates is based on current and present knowledge of products when used under normal circumstances and according to Combimix recommendations. Before using product, user will determine suita- bility of product for its intended use and assumes all related risks, responsibility and liability. Combimix AB • Verkstadsvägen 6 • SE - 746 40 Bålsta • Tel. +46 (0)171-46 65 90 • info@combimix.com Notice Area of use FF 830 is a quick-drying finishing underlayment designed for skim-coating, smoothing and leve- ling prior to the application of floor coverings. FF 830 is suited for new construction and reno- vations. The product is intended for indoor use on substrates of concrete, lightweight concrete, ceramic tiles, gypsum boards, wood and homgenous PVC. FF 830 is easy to use and yields a very smooth surface finish. Pre-treatment The substrate should be clean and free of dust, cement skin, grease and other impurities that can prevent adhesion. Adhesion and surface resistance of the substrate should be no less than 72 psi. Always prime the substrate with PP 600 and allow to dry before applying the FF 830 (see PP 600 datasheet for proper dilution and installation directions). In terms of the primer forming a film, the temperature of the substrate must not be below 50 °F. For best results, the ambient temperature in the work area should be between 50 and 77 °F. At higher or lower temperatures, the time for curing will shorten or extend. Protect the product from excessive heat, excessive cold and draft conditions during and after the installation. It is recommended that the installation should be done with a proper air ventilation from an HVAC system. With the risk for cracks due to shrinkage or settings in the subfloor, a concrete surface should not be leveled within the first 28 days after casting. As a recommendation the RH in the concrete should have reached RH 90 % as the upper limit for applying FF 830. Mixing Mix the dry powder with max 1.9 qt (1.8 L) of cold, potable water, max 40 %, per 10 lb (4.5 kg) bag. Do not overwater. Mix for 2–3 minutes with a heavy duty drill mixer (650 minimum rpm) to obtain a lump-free mix. Product can be freshened by remixing without any additional water. Application Apply the FF 830 to substrate at a thickness of feather edge to 1/2” (12 mm) for all surfaces. After initial set of material (approx. 10–15 min.), remove any overlap marks, seams and inconsistencies by scraping with a steel trowel. Post-treatment and curing Protect FF 830 from excessive heat or draft conditions during the curing process. Protect for up to 24 hours after completed installation. Material can be walked on after 30 minutes.Before covered by carpet be sure that the subfloor is dry enough. The guiding value assumes a curing temperature of approximately 68 °F, 40 % RH and proper air flow. Storage time and packaging Store in a dry environment, on an unopened plastic-coated pallet, six months from the date of production. The date of production is printed on the packaging. FF 830 Fast Fine is delivered in 10 lb (4.5 kg) bags. Residual products and safety information Empty bags can be burned. Any remaining, dry powder that has been stored properly can be used again. Hardened material should be disposed of as construction waste. Do not wash the product into the sewage system. The cement in the product has a reduced level of chromate. Follow regulations in each respective country. Health, environment, safety and technical service documents For current version of product information, contact Combimix at info@combimix.se Previously undated and dated issues are no longer valid. For more information contact our sales organization. Product category: Floor Date: 03/18/2015 Sid: 1(1) FF 830 1,9 qrts 10 lb 15–20 min 0–1/2” 50–77 °F 2+1 min 30–60 min 1–3 hrs Technical information Compressive Strength (ASTM C-349-02) 4,350 psi Flexural Strength (ASTM C-348) 870 psi Fire standard (EN 13813) A1 fl Surface Tensile Bond Strength (7 days) > 144 psi Substrates Concrete, lightweight concrete, ceramic tiles, gypsum boards, wood and homogenous PVC Pour depths 0–1/2” Weight (dry state) 75 lbs/ft 3 Weight (cured state) 95 lbs/ft 3 Working time 15–25 min Final set 30–60 min pH (wet state) apx. 11 Water damage resistant yes Shrinkage (ASTMC-426-99) 0,03–0,05 % Emissions (ISO 16000-10 [indoor air quality part 10]) < 10 μg/(m² h) Coverage per 10 lb. (4,5 kg) bag 1/8 ” (3 mm) thickness apx. 13.5 sq. ft. (1.3 m 2 ) 1/2 ” (12 mm) thickness apx. 3.4 sq. ft. (0.3 m 2 )