Conservare OH, an ethyl silicate solution, has been used for consolidation of ancient lime plaster fragments to enable reassembly of five large statues. The success of treatment was verified by modulus of rupture testing which demonstrated over 300 per cent increase in strength. When viewed with a scanning electron microscope (SEM), the consolidant closely conformed to coccoliths (fossils) in the plaster, and it was uncracked. The SEM showed no detectable changes in the consolidant over the 11-year period in which samples were examined.