Abstract
We executed reseach for compatibility of the building coating materials and the sealants for construction,in the outdoor exposure test.This outdoor exposure test was the collaborative research with Japan Building Coating Materials Association,Japan Sealant Industry Association and Building Research Institute .We started outdoor exposure test from 2005 October with the marketing builiding coating materials and the searants for construction.We reported concerning the result of 1 year later at this meeting in 2007.In this study,reports concerning the result of 3 year later.As a whole,the surface soil of the building coating materials became more terrible than 1 year later,but several types which consider soiling prevention (non-bleeding type of polyuretane sealant and the like),it was verified that it is difficult to get dirty.In addition,the soiling prevention effect by the barrier primer was remarkable,but there was the thing that a soil dirt became remarkable depending on a combination.And the surface crack of the building coating materials,it had an influence on the type of the building coating materials.
