A pilot double blinded clinical trial to compare between Tramadol HCL and Lidocaine HCL as local anaesthesia amongst hospital-outpatient adult dental attendees Mosul-Iraqi Tahani A. Alsandook, PhD. Dean of College of Dentistry/University of Mosul/Mosul/Iraq. [email protected] Yahya A. Al-Haideri, MSc. Assistant Lecturer in Oral and Maxillofacial Surgery Department /College of Dentistr
Igp.chDescription, generallyIGP „Metallic Effects“ coating powders Please note that different coating systems. consist essentially of reactive polymers with the appropriate hardening agents, heat, light including „manual and automatic coating“, and weather resistant pigments and special metallic effect pigments, normally aluminium pigments.
Coatings with metallic effects can be
applied only with corona pistols and „exte-
Unlike the IGP single coat pearl mica and rior charging“ with a voltage of 80-100 kV,
pearl gloss effects, these products need a
without ion leakage system.
transparent overcoat. This applies to pro-
ducts designed both for interior and exterior
Automatic coating should always be given
preference over manual coating. If manual
With the appropriate weather-resistant IGP application is used in support, apply only as
systems, the weather-fastness of the related prime coat (Clouding).
facade quality is certainly also guaranteed.
When using automatic coating, accurately The metallic effect pigments used are pla- telet-shaped, aligning flat and in parallel to and the pistol distance to match the local the surface of the film during the powder melting phase.
Depending on melting viscosity and caused Powder delivery directly from the carton is by the temperature control in the stoving furnace and the specific mass of the work-piece to be coated, changes in effect (visible Make sure that the parts to be coated are as changes in colour shades) can be induced.
This also means that different oven tem-
peratures and heating-up speeds must be
avoided and that thick-walled and thin-
walled parts should not be coated side by
Differences in coating thickness, which may
be difficult to avoid in practical use and
which exceed a certain tolerance limit, can
also result in differences in colour shades or
IGP Pulvertechnik AGRingstrasse 30CH-9500 WilTelefon +41 (0)71 929 81 11Telefax +41 (0)71 929 81 [email protected] PG 203.1: IGP - Coating Powder - Metallic Effects Operation data (with reference to the coating result) which have been ascertained as being optimal should be Stoving conditions:
We recommend cross-linking the metallic base coat When coating objects on both sides (e.g. profile sec- tions), always coat the visible main facing side last.
• ≥ 100% cross-linking can result in coat / layer Use only fresh powder for „Finish“ coatings.
Parts should not be taken off or rehung before the final • With inadequate cross-linking, changes in colour When using a gas-fired oven with direct heating, check
the intermediate adhesion of transparent top coats on
Different stoving variants can be selected for these the metallic base coat.
5 – 8 minutes, 160°C object temperature If automatic application is used and the lot size is sufficiently large, approx. 10% of the total volume may be added by way of recovery / reclaimed powder provided that used powder and fresh powder are ade- 5 – 8 minutes, 180°C object temperature quately blended and mixed. In this case, the coater is responsible, however, for generating an acceptable and Both coats can be cross-linked according to the following specifications: Instead of cyclone recovery, we recommend filter 10 – 30 minutes, 160°C object temperature 7 – 10 minutes, 180°C object temperature Important: the object temperature must be 160°C!
It is important to note that fluctuations and variations in colour shades / effects may occur for the above reasons.
10 – 15 minutes, 200°C object temperature We therefore advise working with limit value patterns
which every user ought to generate on his own system.
Important: the object temperature must be 200°C!
As differences in material thickness and dimensions
This colour shade is specified by RAL as anti-corrosive inside the stove do not allow these values to be deter-
paint with the added notice: Specimen copies not mined theoretically, the user must establish the above
suitable for decorative purposes. Consequently, the stoving data by making practical tests on his system.
IGP reiterations are only approximate. Contact us for the appropriate samples.
These are shown in the appropriate technical instruction Powderful Solutions.
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