The best place to source a safety data sheet (SDS) is on the manufacturer's website. This will help ensure that it is the most recent version of the document.
Alternative places you can find safety data sheets are supplier websites such as B&Q, Wickes and Travis Perkins etc. There is usually a direct link to download safety data sheets for products that they stock/sell which can make things easier.
Remember to make sure that the safety data sheet is associated with the specific substance that you're using.
