MonsterMulch offer up a fantastic product that will protect and seal your playground surfaces.    This will reduce any black carbon rubbing onto hands and cloths from any old and worn rubber mulch. It will also re-enforce and reduce shrinkage improving longentivity. Q-pol is water based polymer originaly developed to re-enforce concrete flooring of grain storage silos in the farming industry. From testing over the past 3 years we have found this to be safe for children and effective re-purposed for rubber products.