What type of spot putty is recommended for quick curing and to prevent shrinkage?

The recommended type of spot putty for quick curing and to prevent shrinkage is two-part putty. This type typically consists of a base and a hardener that, when mixed together, initiate a chemical reaction to cure the putty quickly. This curing process results in a firmer structure that reduces the likelihood of shrinkage as it hardens.

Two-part putties are favored in collision repair due to their superior bonding properties and durability. They form a strong, cohesive bond and are often used for filling deep scratches and imperfections in the vehicle surface, ensuring that the repair remains intact over time. Their quick curing time also allows for faster workflow during the repair process, leading to increased efficiency in the shop.

Other options, while they have their own uses, do not match the criteria of quick curing and minimal shrinkage as effectively as two-part putty. Single-part putties may be simpler to use but often take longer to cure and can shrink more during the drying process. Water-based putties, although easier to clean up and more environmentally friendly, may not provide the fast curing and low shrinkage that two-part putties offer. Fast-drying putty is a general term that could apply to various formulations, but without the two-component system