Answer (1 of 3): Firstly, Lego is designed to come apart. That being said, Almost all Lego is made from ABS plastic, with the exception of clear blocks and flexible parts. Any glue that works with ABS, construction adhesive will work, as well as ABS cement used by Plumbers.
Le-Glue - Safe! - Non-Toxic! - Non-Permanent! Glue for LEGO® Bricks, Le-Glue is a non-permanent glue that is strong, non-toxic, and will NOT damage
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Le-Glue - Safe! - Non-Toxic! - Non-Permanent! Glue for LEGO® Bricks, Le-Glue is a non-permanent glue that is strong, non-toxic, and will NOT damage
Le-Glue - Non-Permanent glue for LEGO Bricks
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I just bought a used Fire Brigade on and it came glued. I want to dissolve the glue and save the set. any help is appreciated. : r/lego
No More Messy Breakups: Enjoy your building masterpieces for longer with Le-Glue, the non-permanent heavy duty glue that holds your building blocks
Le Glue Temporary Glue 3 Pack | Non-Permanent Clear Adhesive Glue for Plastic Building Blocks | No Messy Break-Ups | Non-Toxic Model Glue Formula
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TEMPORARY SPRAY ADHESIVE - BrickShield spray safely bonds your favorite block sets together without having to use permanent glue on plastic brick
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