SUITABLE SUBSTRATES:
Dėl tinkamiausio pagrindo kreipkitės į dangų gamintojus ar pardavėjus. Porėti: Betoninės, gerai surištos cementinės grindys, APA grindų fanera (neapdorota) ir šildomos grindys, kurių temperatūra ne aukštesnė kaip 29,4°C (visų sluoksnių). Taip pat gali būti naudojami ant gerai surištų, tinkamai gruntuotų gipso paklotų (tik aukščiausios kokybės). Neporėti: keraminės plytelės, terrazzo plytelės, marmuras, tam tikros epoksidinės dangos ir esamos gerai suklijuotos elastingos grindų dangos. Atkreipkite dėmesį, kad visi pagrindai turi būti tvirti, stabilūs ir gerai suklijuoti.
SUBSTRATE PREPARATION:
All substrates must be clean, dry, structurally sound, properly cured and free from dirt, oil or grease, paint, old adhesive, wax, sealers and curing compounds. Sand away minor unevenness, then vacuum up all loose material. The substrate must be level. Grinding concrete floors is preferable to using filling compounds. Any filling or levelling compounds used must be Portland-cement-based and have a cured compressive strength of at least 3000 psi (210 kg/m²). Moisture levels in concrete floors fluctuate. Choose cementitious materials with the highest possible moisture resistance and consult their manufacturers' application instructions. Weak concrete and all gypsum-based materials require Titebond Concrete Primer or an equivalent before applying adhesive. Acclimatise the flooring and adhesive in the installation room for 72 hours at 15–35 °C (60–95 °F) and 30–65% relative humidity.
MOISTURE AND ALKALINITY TESTING:
Do not use Titebond 780 where moisture or alkalinity limits are exceeded. Do not use when the substrate temperature is below 18°C or above 30°C, or relative humidity exceeds 65%. Concrete must be fully cured for at least 45 days and free from hydrostatic pressure. Titebond 780 must not be applied to sealed slabs or wet, dusty, contaminated or friable substrates. Acclimatise flooring in accordance with its manufacturer's recommendations. Titebond 780 can be used on slabs up to 99% RH and pH 5–8, or 90% RH and pH 5–8 for sheet vinyl. When installing directly onto wooden floors, the floor's moisture content must not exceed 13%.
