Glue bottle Humbrol Precision Poly Cement for plastic models, 20 ml, touch dry 0.33 h

Humbrol Precision Poly Cement is a solvent-based adhesive supplied in a 20 ml bottle specifically formulated for bonding plastic model parts. Designed for polystyrene, ABS and similar model plastics, the cement softens mating surfaces and fuses them to form strong joints. The low-viscosity formula and fine applicator tube make it suitable for precision work on scale models, small repairs and detailed assemblies. Touch-dry times are short—typically around 0.33 hours—while full setting occurs within about an hour depending on ambient conditions.

Advantages

This precision poly cement offers controlled application through a very thin dispensing tube, enabling sparing use on small areas and fine joins. The solvent action welds parts together rather than relying on surface adhesion alone, resulting in mechanically strong bonds that integrate with the substrate. Fast surface drying reduces handling time, and the compact 20 ml bottle is convenient for hobbyists and model builders who require accuracy and minimal waste.

Suitable for

• Assembling polystyrene and ABS plastic scale models
• Detail work and small part attachment on model kits
• Minor hobby repairs to compatible plastics
• Precision plastic assembly where controlled, low-viscosity application is needed

Key specifications

• Volume: 20 ml
• Formulation: solvent-based poly cement
• Viscosity: low (thin) for precision application
• Applicator: fine tube for controlled dispensing
• Surface tack (touch dry): approximately 10–20 minutes (typical)
• Full dry/setting time: around 1 hour (typical; varies with temperature and humidity)
• Suitable substrates: polystyrene, ABS and similar model plastics

How to use

Apply directly to clean, dry plastic model parts. Use the fine tube to deposit small amounts of cement along the joint or mating surface; capillary action will draw the solvent between closely fitted parts. Hold parts in position until the joint develops sufficient initial tack—typically within 10–20 minutes. Allow the assembly to fully set for about an hour before handling or further processing. If excess cement is present and not yet fully dry, it can be re-dissolved with additional liquid poly cement; once fully cured the bond is permanent.

Usage recommendations

Work in a well-ventilated area and avoid inhaling fumes. Test compatibility on scrap plastic where substrate composition is uncertain. Use sparing amounts to prevent distortion of thin or finely detailed parts. Store the bottle tightly closed in a cool, dry place and keep out of reach of children.