ePlastics® stocks and sells a complete line of plastic adhesives for plexiglass/acrylic material.
IPS Weld-On® 3™ is water-thin, quick drying and is mostly Methylene Chloride in composition. Good for gluing small parts where fast drying is required and bond strength not as critical.
IPS Weld-On® 4™ is water-thin, and a bit slower drying. Most commonly used for 80% of acrylic fabrication tasks.
IPS Weld-On® 16™ is syrupy (or bodied) and fast drying. This adhesive works great where the parts don't fit exactly right, for putting a bead inside a box you are trying to make water-tight, or for bonding applications where a bubble-free bond is not required (bonding solid colors for instance). Also known as SCIGRIP 16.
IPS Weld-On® 40™ is mostly acrylic monomer in composition and is a two-part mix. This is the adhesive used by professionals for making aquariums and other bubble-free and highly structural bonds. It is the strongest of all acrylic glues, and requires some skill in its application. IPS #40 is excellent for bonding acrylic to other materials as well.
IPS Weld-On® 1802™ is formulated to bond acrylic, ABS, cellulose, acetate butyrate, rigid PVC, and polystyrene to themselves and to each other. It does not bond to metal or glass.
IPS Weld-On® 3061™ Thinner for acrylic cement #40 Component A (acrylic monomer).