Study on the Durability of Traditional and Modified Limewash Recipes Results Handmade and Modern Brick
Quality Finish researched possible limewash recipes that may have been used locally by interviewing community members. They were not able to identify recipes used in the community and thus turned to published limewash recipes, including a limewash identified through NPS contracting schedules. We worked together to prepare wood and brick test samples. Starting in November 2004, Quality Finish applied ten separate washes on handmade and modern brick samples. On all brick samples, an Edison acrylic emulsion was used as a primer. The same limewash recipes were applied to weather and rough-sawn wood, except for the wash K, the Virginia Limeworks putty and water which was only applied to the brick samples.
As of October 2005, NCPTT has completed scheduled testing on all samples. However the Center has decided to undertake additional testing, including traditional limewashes of lime and water on brick and wood samples without an Edison primer and the three best performing limewashes from the wood test on epoxy samples. The results from the additional testing are expected by the beginning of 2006. This report will focus on the results of durability testing of limewash recipes on the original handmade and modern brick samples.