Mould Release Coatings
• NMR- Nano Mould Release

Hard Coatings for Plastics Moulding
• Armoloy TDC
• PVD – Titanium Based Coatings

Custom Manufacture
• Cores, Ejector pins and precision components

Nano Mould Release (NMR)
This exciting new invention is a breakthrough in technology for the plastic injection moulding industry. Lowering scrap, increasing quality, decreasing cycle times and in-house application method, this coating offers it all.

Every moulding facility should have NMR on hand no matter whether you are big or small, moulding automotive bumpers or micro-components.

What is it?
NMR is a self-applied, non-migrating mould coating that facilitates part release from 5000 to 100 000, and even up to 300 000 cycles per coating application. The coating is applied by brush, cloth or dropper and is only 100-200 nanometres thick. It is non-toxic and suitable for both food grade and medical applications.

Microscopic Coating
NMR has a specially designed form of hybrid material as its base and measures between 100-200nm (0.0001-0.0002mm) in thickness. It is as though the coating is not even there. This coating has hydrophobic (fluid repelling) anti-stick, anti-static and anti-corrosion properties with an extremely low-friction coefficient. In addition it repels UV, is non-toxic, is translucent and colourless, and transmigrates at an undetectable rate. Its low surface energy and chemical non-reactivity provides excellent dry anti-sticking properties. It also doesn’t contribute to the production of unwanted chemical by-products called mould fouling.

Faster Release Rates
Be it in the plastics or rubber industry, Nano Mould Release increases release rates by up to 50%. It greatly reduces the need to use traditional mould release products or to add expensive wax additives to your injection material.
Dramatic increases in production output, reduced time spent on production and maintenance cycles, higher quality end products and a wider range of production capabilities make Nano Mould Release the ideal choice in the competitive manufacturing industry today.

Also good properties for the protection and release of blow moulding tools.

Nano Mould Release is the effective solution to mould release.

Major Benefits for the Plastic injection Moulding Industry:

• Increases productivity - more parts per hour due to new optimum settings and parts not sticking in the mould.
• Enhances the flow of resin in moulds due to its low coefficient of friction.
• Parts release quicker. Allows the reduction in moulding pressure and temperature.
• Easily applied— 10 to 15 minutes in your premises. Unnecessary to send tools out.
• Cures in eight hours ( 8 plus 8 hours for HS coating )
• Reduction in part weight as resin is not packed as tight.
• Eliminates streaking and drag marks as moulds fill more easily , increasing quality and reducing rejects.
• Minimizes ejector pin push marks
• Eliminates use of other release agents.
• Not transferred to finished parts so no washing required prior to printing, painting or metalizing.
• Silicone free.
• Can be applied over polished or coated surfaces.
• May be applied over the whole mould or in specific inserts, cavities or on core pins.
• Bonds to all metal, plastic and plated die surfaces and can be removed with a wipe of the special cleaner.
• Acts as a rust and corrosion inhibitor.
• Non-toxic.
• Resists carbon build-up from burnt deposits due to extremely low coefficient of friction.

 
Standard NMR Coating Kits
Kit Contains
Sample Kit Standard
Surface (SS)
 Rough Texture
Surface (RS)
 Polished
Surface (PS)
 High Stress Surface
HS-1 & HS-2
 NMC
Remover
 Coverage*
Sq m
5ml SS5 RS5 PS5 HS5 25ml 0.5 – 0.9
15ml SS15 RS15 PS15 HS15 50ml 1.4 -2.8
20ml SS25 RS25 PS25 HS25 50ml 3.7 – 5.5
25ml SS50 RS50 PS50 HS50 50ml 7.4 – 9.3

1. Sample kit price will be credited to the purchase of a complete 25 or 50 ml kit or 50% will be credited to the purchase of a 15 ml kit.
2. Full kits contain the coating in liquid form, applicator brushes, micro cloths, NMC Remover and instruction guide.

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ARMOLOY Thin Dense Chrome
What is Armoloy® ?
Armoloy® Thin Dense Chromium is a coating process based on a special chrome-plating technology that displays higher hardness, along with better lubricity and corrosion than any other chrome coatings on the market. Through a proprietary chemical solution, Armoloy® is produced as a hard, thin, dense chrome coating, where its micro-nodular surface texture boasts benefits of ease of release whilst the high hardness resists the abrasion of abrasive filler materials.

Properties of Armoloy®
• High hardness – At 78HRc, Armoloy® Thin Dense Chrome is one of the hardest coatings available.
• Nodularity – A key property of Armoloy® is a nodular effect which increases lubricant retention and reduces surface contact area. This in turn improves the wear life and reduces friction, especially on Armoloy-to Armoloy applications like slides, rotating cores etc.
• high corrosion resistance as the coating is almost free of micro-cracks (conventional chrome +/- 40 micro-cracks per cm2)
• Absolute adhesion - Armoloy® coating will not chip, flake, crack, peel or separate from the base metal
• Uniform deposits without thickness or edge build-up
• No requirement for post finishing (except special applications)
• Matt silver satin chrome finish
• Applies to all steels at 50 °C with no distortion.
• Thermal Stability of between -240°C and 870°C
• Can be applied locally to the area required

Typical Thickness
The standard deposit thickness of Armoloy TDC ranges between 0.0025 -0.0075mm (2,5 – 7,5 microns) with a tolerance range of 1.5 microns.

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Physical Vapour Deposition –PVD ( Titanium Based Coatings)
Titanium based PVD coatings have been used extensively in moulds with higher volume production demands.

The combination of excellent surface finish, high hardness of 85-90 HRc and a thickness of 3 microns +/- 1 micron makes it and excellent coating for mould cavity protection.
Relatively low process temperature (~470°C) means that little to no distortion occurs during coating, but does limit suitable mould steels that can be used successfully.

The ability to protect high gloss finishes against abrasive actions of fillers or high cycle stripping and de-moulding means this coating is excellent for rotating cores and pre-form cores.

PVD coatings also find other application in the Plastics field with other mechanical applications such as slides and locks, as well as perforating and cutting blades.

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Custom Manufacture: Cores, ejectors and precision components

Many customers benefit greatly from using coated tooling in their manufacturing processes, but find it inconvenient and complicated to meet all the surface finish, material selection and heat treatment criteria to make a real performance tool.
For this reason TD Coating Centre offers a complete manufacturing service to its customers.
No longer do you need to get a part made only to find out that the material is not suitable or have the process delayed due to shipping it off to coating and then worrying about whether the surface finish is good enough to coat. We can do it all for you with one point of call.
Specialising mostly in small, precision ground tools and components the company boasts a wide flexibility of capabilities with excellent quality and consistency.
Any type of application can be considered
• Custom core pins
• Flat and round ejectors
• Sleeves and pins
• blades
• cutters and extrusion punches.

Using specific international partners for the manufacture of tooling, TD Coating Centre specifies all base material, heat treatment and surface finish requirements. We complete the process by pre-polishing and applying the appropriate coatings as a final step before shipping finished tooling to customers.
Materials available range from conventional Japanese made hot and cold work tool steels to a range of Erasteel high speed steels including conventional and state of the art, powder metallurgical high speed steels.
All heat treatment is done by vacuum and specified by TD Coating Centre for optimum part performance and coating compatibility.
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Contact Details

TD Coating Centre
Telephone : +27-(0)11-9085396
Fax           : +27-(0)11-9085305

E-mail: Send an Email
Website Address: www.td.co.za

Physical Address: 144 Chris Street, Alrode, Alberton, Johannesburg , 1450, South Africa

Postal Address : Postnet Suite 35, Private Bag X035, Alberton, 1450, South Africa