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Your strategic partner in material innovation

Ngai Hing
Engineering Plastics

毅興工程塑料（香港）

Custom plastics production house

Hong Kong-based engineering plastics manufacturer providing tailor-made polymers for high performance, design flexibility, and production efficiency.

Established in 1997 and member of Ngai Hing Hing group, a Hong Kong stock exchange listed company.

Let's
create together.

Our mission

Our mission is to be your strategic partner in materials innovation — bridging decades of experience with engineering solutions to help you achieve your product goals.Whether you’re designing industrial parts, consumer goods, or advanced electronics, we deliver the materials to bring your vision to life.

High performance,
solution focused

At Ngai Hing Engineering Plastics, we innovate across material classes. This approach has allowed us to develop highly tailored solutions specified to your exact design, tooling, and manufacturing needs.

All the materials we work with ↴

ABS
BIO/PA
BIO/PE
HIPS
LCP
PA6
PA66
PA610
PBT
PC
PCTG
PEEK
PET
PETG
PMMA
POM
PS
PP
PPS
PPSU
SAN
TPE
TPU

That's the SPECTRON™ difference.

At Ngai Hing Engineering Plastics, we innovate across material classes. This approach has allowed us to develop highly tailored solutions specified to your exact design, tooling, and manufacturing needs.

All the materials we work with ↴

ABS
BIO/PA
BIO/PE
HIPS
LCP
PA6
PA66
PA610
PBT
PC
PCTG
PEEK
PET
PETG
PMMA
POM
PS
PP
PPS
PPSU
SAN
TPE
TPU

That's the SPECTRON™ difference.

Formulas crafted with you in mind

About Us

Ngai Hing Engineering Plastics is a Hong Kong-based engineering plastics production house bringing over twenty years of experience and know-how in polymer science.Our depth and breadth of experience in developing tailor-made polymers provides new and existing customers unmatched design flexibility and production precision.Established in 1997 as part of Ngai Hing Hong Group. Manufactory located in Hong Kong and Southern China (Dongguan). Pellets sold under trademark SPECTRON™

Sales offices
Located in Hong Kong, Dongguan, Shanghai, Haiphong (Vietnam), and Ho Chi Minh.We supply globally
Currently supplying to China, US, UK, EU, Mexico, India, Sri Lanka, UK, Indonesia, Malaysia, Vietnam, Cambodia, and more.Industries served
Small/large appliances, electrical + consumer electronics, premium toys, infant/baby, industrial, kitchen and homeware, and furniture.

Engineering for tomorrow, trusted today

「毅」— the first character of our company name, and a reflection of our guiding principle.Pronounced 'Ngai' in Cantonese, this Chinese radical means having a firm will, to persevere in the face of difficulty.

Materials carry both utility and responsibility

We do not create for the disposable culture of single-use plastics, nor do we work with polymers known to be harmful to the human body.Our core research and development ethos is to create high-performance plastics for products that are designed to last. We believe in creating materials that extend the life of products and can give new life to plastic waste.

Innovating for the future

Since 2021, we have partnered with The Chinese University of Hong Kong to found Ngai Hing Innovation, a research, development, and manufacturer of silica-based nano materials to directly tackle pressing environmental and biological threats of our time, including the proliferation of microplastics (and other known toxic materials) via cosmetics, clothing, food packaging, and everyday plastic goods.

Hong Kong

9 Dai Shun St
Tai Po Industrial Estate
New Territories

+852 2660 0208

Dongguan

113 Siheng Road
Zhuanyao Industrial Zone
Dongcheng District

+86 769 2316 6636

Shanghai

8100 Songze Ave
Qingpu Industrial Zone
Qingqu District

+86 21 6922 5699

Haiphong

3 Lê Thánh Tông
May To Ward
Ngo Quyen District

+84 0337191920

About Us

Ngai Hing Engineering Plastics is a Hong Kong-based engineering plastics production house bringing over twenty years of experience and know-how in polymer science.Our depth and breadth of experience in developing tailor-made polymers provides new and existing customers unmatched design flexibility and production precision.Established in 1997 as part of Ngai Hing Hong Group. Manufactory located in Hong Kong and Southern China (Dongguan). Pellets sold under trademark SPECTRON™

Sales offices
Located in Hong Kong, Dongguan, Shanghai, Haiphong (Vietnam), and Ho Chi Minh.We supply globally
Currently supplying to China, US, UK, EU, Mexico, India, Sri Lanka, UK, Indonesia, Malaysia, Vietnam, Cambodia, and more.Industries served
Small/large appliances, electrical + consumer electronics, premium toys, infant/baby, industrial, kitchen and homeware, and furniture.

Engineering for tomorrow, trusted today

「毅」— the first character of our company name, and a reflection of our guiding principle.Pronounced 'Ngai' in Cantonese, this Chinese radical means having a firm will, to persevere in the face of difficulty.

Materials carry both utility and responsibility

We do not create for the disposable culture of single-use plastics, nor do we work with polymers known to be harmful to the human body.Our core research and development ethos is to create high-performance plastics for products that are designed to last. We believe in creating materials that extend the life of products and can give new life to plastic waste.

Innovating for the future

Since 2021, we have partnered with The Chinese University of Hong Kong to found Ngai Hing Innovation, a research, development, and manufacturer of silica-based nano materials to directly tackle pressing environmental and biological threats of our time, including the proliferation of microplastics (and other known toxic materials) via cosmetics, clothing, food packaging, and everyday plastic goods.

Contact Us

Hong Kong

9 Dai Shun St
Tai Po Industrial Estate
New Territories+852 2660 0208

Shanghai

8100 Songze Ave
Qingpu Industrial Zone
Qingqu District+86 21 6922 5699

Dongguan

113 Siheng Road
Zhuanyao Industrial Zone
Dongcheng District+86 769 2316 6636

Haiphong

3 Lê Thánh Tông
May To Ward
Ngo Quyen District+84 0337191920

Formulas crafted with you in mind

Maximize production and warehouse efficiency

Engineering Additives

Explore additives for ABS, Polypropylene, and Nylon

Maximize production and warehouse efficiency

提升生產及貨倉效率

ABS ↴

  • Impact Modifier "DIY"
    ABS 增韌劑
    Simple compounding solution designed to enhance impact resistance. Also helps with resins designed to mix with glitter.
    0% 80 J/m (3x regrind)
    +5% 150 J/m (with additive)
    +10% 220 J/m (with additive)

  • Toughened Matte Finish Masterbatch
    ABS 增韌啞光母料
    Mix in 1:1 ratio with standard ABS to achieve a paint-free matte finish while enhancing inherent impact resistance.

Polypropylene ↴

  • UL/94 FR Masterbatch
    PP UL/94 防火母粒
    Certify standard Polypropylene with Spectron™ UL Yellow Card.* Available in prime or pre-mixed form. Also reduces cycle times by 10-20% by improving crystallization rate.
    *UL Certification only applicable when mixed in specified let-down ratios:
    UL/94 HB 1:5 ratio
    UL/94 V2 1:6 ratio

  • Low-warpage Ultra Masterbatch
    PP 低變形母粒
    Simple physical compounding solution designed to resolve common warpage issues. Addresses overall thermal and dimensional stability. Results can be observed with as little as 10%.

  • Impact Modifier "DIY"
    PP 增韌劑
    Simple compounding solution designed to enhance impact resistance by 3X with just 10%. Available in opaque and translucent form. Suitable for prime, scrap, or PCR resins.

Nylon 66 ↴

  • Beautiful Glass Fiber Nylon
    PA66 GF 靚仔尼龍
    60% low-floating glass fiber contents to physically compound with unmixed Nylon 66 to achieve desired glass fiber content featuring Spectron™ Beautiful Glass Fiber technology.
    UL/94 HB
    RTI Elec/Imp/Str 140/125/140ºC

Beautiful Glass Fiber

Our Best Selling Series

Difference you can see

Captured at 640X Electronic Zoom
With thanks to The Chinese University of Hong Kong

Taking a closer look:

Beautiful Glass Fiber Technology is our approach to achieving an imperceptible glass fiber effect. Through our optimized formulation, glass fibers are optimally arranged and positioned within the polymer matrix to produce an exceptionally hard and smooth surface finish. These effects can be observed with both short and long glass fibers and with several material classes.

Material BaseMaximum Glass Fiber Content
Nylon 6660
Nylon 650
Polypropylene40
PBT30
ABS20

All material classes will feature the same distinct quality of imperceptible glass fiber contents without changing molding and processing parameters or part design.This description does not imply any guarantee of certain properties, however. Final effect varies according to part and mold design.

Exceptional surface quality

Imperceptible glass fibers under normal molding conditions, providing a high gloss, smooth, and uniform surface.

Superior durability

Superior glass fiber dispersion and polymer matrix organization, producing superior durability and strength.

Enhanced hygiene

An ultra-hard and smooth surface minimizes friction and prevents contaminants from becoming trapped.

Beautiful Glass Fiber

Nylon 66

A tried-and-true formula appropriate for precision molding and metal replacement applications.

  • FDA/LFGB/GB Food Safe

  • UL Certification

.Quality
Material BaseNylon 66
Glass Fiber Content15 - 60%
Surface FinishExcellent
Isotropic StabilityExcellent
Stiffness and StrengthExcellent
Heat ToleranceExcellent
HDT225 - 240ºC
Shrinkage Rate0.5 - 0.7%
UL/94HB
RTI Elec/Str/Imp140/125/140ºC

Beautiful Glass Fiber

PBT

Exceptionally durable material exhibiting high tolerance for constant high stress loads over time with minimal deformation and degradation.

  • Low Creep

  • Electrical Insulation

  • UL Certification

  • FDA/LFGB/GB Food Safe

.Quality
Material BasePolybutylene Terephalate
Glass Fiber Content15 - 30%
Surface FinishExcellent
Isotropic StabilityExcellent
Stiffness and StrengthExcellent
Heat ToleranceGood
HDT190 - 195ºC
Shrinkage Rate0.4 - 0.8%
UL/94V0
RTI Elec/Str/Imp75/75/75ºC

Beautiful Glass Fiber

PP

Lightweight material with exceptional relative strength and superior processability, making it ideal for thin-wall and lightweight applications.

  • Low Specific Gravity

  • Balanced Strength and Toughness

  • High Processability

  • UL Certification

  • FDA/LFGB/GB Food Safe

.Quality
Material BasePolypropylene
Glass Fiber Content5 - 40%
Surface FinishExcellent
Isotropic StabilityExcellent
Stiffness and StrengthExcellent
Heat ToleranceExcellent
HDT125 - 150ºC
Shrinkage Rate0.8 - 1.2%
UL/94HB
RTI Elec/Str/Imp65/65/65ºC

Beautiful Glass Fiber

ABS

Engineered and glass-fiber reinforced ABS featuring enhanced toughness and strength. Maintains pad printability, glue adhesion, and ultrasonic weldability.

  • Exceptional Surface Finish

  • Balanced Strength and Toughness

  • FDA/LFGB/GB Food Safe

  • BPA Free

Don't see something you're looking for?Send us a message, chances are we already have a solution for that.

.Quality
Material BaseABS
Glass Fiber Content20%
Surface FinishExcellent
Isotropic StabilityExcellent
Stiffness and StrengthExcellent
Heat ToleranceExcellent
HDT209ºC
Shrinkage Rate0.4 - 0.7%

Don't see something you're looking for?Send us a message, chances are we already have a solution for that.

Super Tough Series

Enhanced durability and toughness

About this series:

Enhanced toughness is the core feature of materials within this series. Enhanced toughness is relative to their standard counterparts and are respectively balanced with strength and stiffness properties to complement common part design practices. Additional material properties that are notably relevant to certain industries and applications are highlighted below.

MaterialFeature(s) 
TPEO/m PPO/m ABS
ABSExceptional ToughnessCoat-free Matte Finish
NylonPaintable SurfaceLow Moisture Absorption
POMSelf LubricationCreep Resistant
PBTExceptional RigidityDimensional Stability

Scroll to browse material details ↴

Super Tough

Nylon 6

Exceptional toughness without post-water treatment. Offered at several tiers, this class of Super Tough Nylons provides inherent strength and toughness properties, neutralizing environmentally-induced enhancements, warpage, and degradation.

  • Extreme Toughness

  • No Post-water Treatment

  • Dimensional Stability

  • Paintable Surface Available

.Quality
Material BaseNylon 6
ToughnessExcellent
Surface HardnessD90 - D45
Heat ToleranceGood - Excellent
HDT180 - 200ºC

Super Tough

POM

Cost-competitive material featuring excellent toughness, self lubrication, high fatigue strength, and excellent creep resistance.

  • Extreme Toughness

  • Creep Resistant

  • Cost Competitive

.Quality
Material BasePOM
ToughnessExcellent
Shrinkage Rate1.8 - 2.2
Coefficient of Friction0.12 - 0.25
HDT130 - 160ºC

Super Tough

Matte ABS

This material enables manufacturers to produce products with a smooth matte finish without applying any matte coating. Maintains good paintability, ultrasonic weldability, and glueability and features enhanced toughness.

  • Extreme Toughness

  • Matte Finish

  • Cost Competitive

.Quality
Material BaseABS
Surface FinishMatte
ToughnessExcellent
Stiffness and StrengthBalanced
HDT95ºC
Shrinkage Rate0.4 - 0.7%

Super Tough

TPE

Toughened TPE resins designed to optimally adhere to ABS and PP.

  • Extreme Toughness

  • Overmolds ABS and PP

  • Cost Competitive

Don't see something you're looking for?Send us a message, chances are we already have a solution for that.

.Quality
Material BaseTPE
Surface Hardness35A - 90A
DurabilityExcellent
Elongation at Break>500

Don't see something you're looking for?Send us a message, chances are we already have a solution for that.

Just for Fun / Innovative

Resins we've created through happy accidents or joint developments with our customers to enable their product development innovations.

Hyperelastic resin

Ever play with a piece of elastic that felt like it could never, ever, ever break? Yep. This is what that is. Even after 10,000 rounds of maximum extension, parts molded with this resin perfectly retain its original shape.

Moldable resin

A moldable, clay-like resin that is pliable, retains memory and is slow to rebound. Almost feels like there's a metal wire embedded inside holding its shape.

Shapeable resin

Resin that retains memory and can be shaped/reshaped through warm and cold water. Warm to mold, cold to set. Works with molded parts up to 1cm (0.4in) in diameter/width.

Conductive resin

Resin made for electronic interactive games. Unlike other metal-filled resins, this base resin is a light gray and can be colored to different dull colors such as dark purple, brown, and blue.(TPE group is black in color.)

.Quality
Material BasePA/PP/PS
Surface Resistance1E3 - 1E5
.Quality
Material BaseTPE
Specific Density1.06 - 1.12
Surface Resistance1E3 - 1E5
Surface Hardness35D - 50D

Heavy resins

Mineral or metal-filled resins featuring specific gravities ranging from 1.6 - 3.2g/cm3. Available in several resin bases. Engineered to complement real-world use cases such as part design, performance requirements, and cost.

.PPABSPAPBTPPS
ColorWhiteWhiteWhiteWhiteGray
Specific Density1.9 - 2.31.6 - 1.72.4 - 2.71.653.2

Wood-fiber filled resins

PEFC certified fine-grain wood fiber filled resins to give an wood finish and feel. Available in several resin bases, including BioPE, ABS, and PP. Biocontents of these resins range from 2% to 96%. Exceptionally dimensionally stable and warpage resistant.

.Quality
Material BaseABS/BioPE/PP
Specific Density1 - 1.15
Shrinkage Rate~0.4 - 0.7
Impact Strength30 - 40
Flexural Modulus2200 - 3000

Don't see something you're looking for?Send us a message, chances are we already have a solution for that.