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RGLAX PHARMARglax Coat

SC-501

Colour or white seal coat

Pigmented sub-coat where the seal layer also has to cover the core.

Application

Colour or white seal coat for cores that need covering as well as sealing, so the finishing film coat can be applied at a lower build-up.

How it runs

Covers as well as seals, so the finishing film coat can be applied at a lower build-up. It earns its place on dark or mottled cores that would otherwise need a heavy white film to hide.

Build-up and solids are fixed at trial.

Part of the Seal and Pre-Coat range.

Product code
SC-501
Coating system
Seal and Pre-Coat
Process base
Aqueous or non-aqueous
Finish
White or colour
Supply form
Ready-mix, dispersed on site

How the coat sits on the tablet

Seal or pre-coatTransparent or pigmentedTablet coreCompressed active and excipientsCross-section, not to scale
A sub-coat gives the functional layer an even surface to build on, and keeps the core away from the polymer above it.

Starting parameters

Rglax Coat film coating

Tablet bed and inlet temperatures are given as aqueous over non-aqueous (AQ / NAQ). Settings are indicative and confirmed against your core during trials.

Coating equipmentConventional coaterAQ / NAQ12 inch panAuto coaterAQ / NAQ24 inch panConventional coaterAQ / NAQ36 inch panAuto coaterAQ / NAQ48 inch pan
Pan speed (rpm)18 to 2014 to 168 to 123 to 5
Tablet charge (kg)0.5 to 13 to 540 to 50100 to 130
Tablet bed temp (°C)35-40 / 30-3535-40 / 30-3535-40 / 30-3535-40 / 30-35
Inlet temp (°C)75-80 / 60-6575-80 / 60-6575-80 / 60-6575-80 / 60-65

Common questions about SC-501

When is a coloured seal coat better than a transparent one?

On dark or mottled cores. SC-501 covers as well as seals, so the finishing film coat can then be applied at a lower build-up instead of carrying all the covering work itself.