{"id":613386,"date":"2026-09-14T16:54:30","date_gmt":"2026-09-14T16:54:30","guid":{"rendered":"https:\/\/www.olympiajournal.com\/news\/story\/613386\/abs-injection-molding-developments-address-changing-manufacturing-requirements.html"},"modified":"2026-09-14T16:54:30","modified_gmt":"2026-09-14T16:54:30","slug":"abs-injection-molding-developments-address-changing-manufacturing-requirements","status":"publish","type":"post","link":"https:\/\/www.olympiajournal.com\/news\/story\/613386\/abs-injection-molding-developments-address-changing-manufacturing-requirements.html","title":{"rendered":"ABS Injection Molding Developments Address Changing Manufacturing Requirements"},"content":{"rendered":"

Xiamen, Fujian<\/strong>, China – September 1<\/strong>4<\/strong>, 2026<\/strong><\/p>\n

1. What Is ABS?<\/p>\n

ABS (acrylonitrile butadiene styrene) is a terpolymer: it combines three monomers — acrylonitrile<\/strong> (chemical resistance and heat stability), butadiene<\/strong> (impact toughness and low-temperature performance), and styrene<\/strong> (rigidity, surface gloss, and processability). By adjusting the ratio of these components, compounders tune ABS from soft and rubbery to hard and glossy.<\/p>\n

It is an amorphous<\/strong> thermoplastic, meaning it has no sharp melting point — it softens gradually over a temperature range. That behavior, plus low mold shrinkage, makes ABS exceptionally dimensionally stable and easy to mold to tight tolerances. It is also naturally opaque and can be colored in virtually any shade.<\/p>\n

2. Key Properties of ABS<\/p>\n\n\n\n\n\n\n\n\n\n
\n

Property<\/strong><\/p>\n<\/td>\n

\n

Typical Value<\/strong><\/p>\n<\/td>\n

\n

What It Means for Your Part<\/strong><\/p>\n<\/td>\n<\/tr>\n

\n

Density<\/p>\n<\/td>\n

\n

1.04–1.06 g\/cm³<\/p>\n<\/td>\n

\n

Lightweight, similar to PP\/PS<\/p>\n<\/td>\n<\/tr>\n

\n

Tensile strength<\/p>\n<\/td>\n

\n

35–50 MPa<\/p>\n<\/td>\n

\n

Good load-bearing for rigid parts<\/p>\n<\/td>\n<\/tr>\n

\n

Izod impact (notched)<\/p>\n<\/td>\n

\n

150–250 J\/m<\/p>\n<\/td>\n

\n

Excellent toughness at room temp<\/p>\n<\/td>\n<\/tr>\n

\n

Heat deflection temp<\/p>\n<\/td>\n

\n

80–110°C<\/p>\n<\/td>\n

\n

Fine for indoor\/automotive-interior use<\/p>\n<\/td>\n<\/tr>\n

\n

Mold shrinkage<\/p>\n<\/td>\n

\n

0.4–0.7%<\/p>\n<\/td>\n

\n

Low, predictable — easy tight tolerances<\/p>\n<\/td>\n<\/tr>\n

\n

Water absorption<\/p>\n<\/td>\n

\n

~0.3%<\/p>\n<\/td>\n

\n

Stable dimensions, low swell<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

ABS is prized for high impact resistance<\/strong>, good stiffness, excellent surface finish, and easy post-processing (painting, plating, bonding). Its main weaknesses are poor weatherability (UV yellows and embrittles it) and limited high-temperature use — it softens well below the 120–140°C range where PC thrives.<\/p>\n

\"illustration_1_injection_molding_process\"<\/p>\n

3. ABS Molding Parameters<\/p>\n

ABS is forgiving to mold, but following the right window keeps parts shiny and defect-free. Typical ranges:<\/p>\n