Stoddard solvents are varsols. WD- 40 is almost worthless as a lubricant unles one used it like marvel mystery oil in your gas tank. It is ehpemeral as a lubricant, It does penetrate and evaporate but there are much better penetrating oils. The real problem with it is that folks have been lead to think that it is a lubricant which will last for more than a few days. It may displace water but I don't use it and I don't have problems with my methods David