A3WG5

03/2006Ultramid ? A3WG5

PA66-GF25

Product description

Glass fibre reinforced and heat aging resistance injection moulding grade for machinery components and housings of high

stiffness and dimensional stability such as coil formers and bearing cages. A3EG5 and A3HG5 are the preferred grades

for producing electrically insulating parts.

Physical form and storage

Ultramid? is supplied dry and ready to use in moisture-proof packaging in the form of cylindrical or flat pellets. Its bulk

density is about 0,7g/cm3. Standard packs are the special 25kg bag and the 1000kg bulk container (octagonal IBC=

intermediate bulk container made from corrugated board with a liner bag). Subject to agreement other forms of packaging

and shipment in tankers by road or rail are also possible. All containers are tightly sealed and should be opened only

immediately prior to processing. To ensure that the perfectly dry material delivered cannot absorb moisture from the air

the containers must be stored in dry rooms and always carefully sealed again after portions of material have been

withdrawn. Ultramid? can be kept indefinitely in the undamaged bags. Experience has shown that product supplied in

IBCs can be stored for about 3 months without any adverse effects on processing properties due to moisture absorption.

Containers stored in cold rooms should be allowed to equilibrate to normal temperature so that no condensation forms on

the pellets.

Product safety

Ultramid? melts are thermally stable at the usual temperature for A, B and C up to 310°C and 350°C for T and do not give

rise to hazards due to molecular degradation or the evolutionon of gases and vapors. Like all thermoplastic polymers

Ultramid? decomposes on exposure to excessive thermal load, e.g. when it is overheated or as a result of cleaning by

burning off. In such cases gaseous decomposition products are formed. Decomposition accelerates above 310°C (T

>350°C) approximately, the initial products formed being mainly carbon monoxide and ammonia, and caprolactam too in

the case of Ultramid? B. At temperatures above about 350°C (T>400°C) small quantities of pungent smelling vapors of

aldehydes, amines and other nitrogenous decomposition products are also formed.

Further safety information see safety data sheet of the individual product.

Note

The data contained in this publication are based on our current knowledge and experience. In view of the many factors

that may affect processing and application of our product, these data do not relieve processors from carrying out their own

investigations and tests; neither do these data imply any guarantee of certain properties, nor the suitability of the product

for a specific purpose. Any descriptions, drawings, photographs, data, proportions, weights etc. given herein may change

without prior information and do not constitute the agreed contractual quality of the product. It is the responsibility of the

recipient of our products to ensure that any proprietary rights and existing laws and legislation are observed.

In order to check the availability of products please contact us or our sales agency.

Ultramid? A3WG5

Footnotes

1) If the product definition doesn't state otherwise.

2) Specimens according to CAMPUS.

3) The asterisk symbol '*' signifies inapplicable properties.

4) Test box with central gating, dimensions of base (107*47*1,5) mm, processing conditions: TM = 290°C, TW = 80°C

5) Empirical values determined on articles repeatedly subjected to the temperature concerned for several hours at a time over a period of several years. Provisio Proper design and processing according to our recommendations.