Bonsai Wound Seal Now in 190g The Green lid cut putty is darker in colour which suits Conifers and Evergreens darker bark colour to help make the putty more incognito. Both the green lid and white lid putty's are the same ingredients. Cut putty is used to help seal fresh wounds on bonsai trees so that they can begin healing without the risk of rotting and disease.The ingredients in this cut paste are not harmful to the human skin.This Cut putty has been sold in japan since May of 1990 and is trusted by Bonsai Professionals world wide. Read our full cut paste buyers guide here Cut Paste For Bonsai Buyers Guide Key Features Prevents rainwater and decay from the cut site. If the pruning cut measures 2 cm or less, it is recommended to fill the gap with cut paste to prevent rainwater and disease from entering and to inhibit decay. In the case of a large cut (especially if it is an old wound), it is advised to first apply Cut Paste and then cover it with a thick layer of paste measuring 2 mm to 3 mm. Prevents cracks and burns Even for slow-healing tree species ( quince, camellia, azalea, etc.), applying cut paste can protect the cut for 1 to 2 years and prevent cracks and burns. Faster healing of the trunks wounds The healing time for a wound can vary depending on its size. However, if the cut measures 2 cm or less, the wound typically swells for approximately a year before completely closing and healing. The trunk does not discolour and the ointment does not flow out Cut paste is resistant to running caused by rainwater, or heat, and it does not cause discoloration of the trunks bark. However, it is important to note that the paste is water-soluble, so it should not be exposed to rain or water for a period of 3 to 4 hours after application. It can be easily applied to any small cut Cut Paste can be easily applied to any small cut. In addition, you can choose from two colours, one for Deciduous and one for Conifer / Evergreen trees, so even if you apply it, it will not stand out.