Acklands and most industrial supply place carry it. I order mine from the states as it save quite a bit as Acklands is over $106 for the 1 LB tub, smallest it comes in, while Allspec is $42 and MSC is only $59. It pays to check the Canadian mail order price first, Travers link below, however. Last time it was cheaper buying it local, when you figured exchange and mailing costs. (Suggest to always use USPS when shipping from the states. Avoids the ripoff surcharges by UPS and fedex.)
http://www.all-spec.com/products/10110.html
http://www.mscdirect.com/product/det...60059&fromRR=Y
http://www.traverscanada.com/product...catalog=130220