PL161 INTUMESCENT PAINT NOW REPLACED BY MSRR 1055

IP Code No - PL161 Replaced by IP9189 A & B

Single pack, spray applied, stoving intumescent coating developed for application to aircraft, turbine components and other products made from GRP, titanium, aluminium and other substrates from the effect of fire. This product is designed to protect the substrate from fire and heat of 1100ºC (2000ºF) for at least 5 minutes. Its advantages over other products are that one tenth of the coating thickness is needed for the same protection that other intumescents give. A recommended film thickness is 250-375 microns. Used for example on Rolls Royce 535C fan casing.

Features:

• A It is a significantly thinner coating.
• A It is therefore lighter.
• A Cast in body markings, e.g. on fuel pumps, remain visible. Further identification marking is often not required.
• A The material is resistant to a wide range of fluids including hydraulic oils. fuels and Skydrol.
• A The aluminium top coat is cosmetically pleasant and means the coating can be handled and grease and other contamination wiped off.
• A Easily applied by end user.
• A It is a thinner coat and self applied - should be significantly cheaper than using specialist applicators of intumescent coatings.
• A Withstands 150ºC (300ºF) without change.

PL161 was withdrawn by Rolls Royce in August 1997, replaced by MSRR 1055. IPC alternative reference nos of approved paints, IP9189 and IP1055.
MSRR 9169 PL161 RR Code 137764 E3896
PL161 Tinter RR Code 138049
MSRR 9040 IP9138/R1 Aluminium air drying top coat

Typical performance is demonstrated as follows:

Two 0.65mtrs panels of 4mm anodised aluminium, one coated with IP9094 using the described method and the other left uncoated. Both are pressurised to 5 p.s.i. An SAE 15cm diameter Propane burner (116350 BTU) is positioned 10cm from the centre of each panel.

Effects of Heating Non Coated Panel Coated Panel:

• 1 Minute Panel distorted outwards Panel distorting
• 2 Minutes Deterioration rapidly increasing Intumescent paint barrier formed
• 2 Minutes + Explosion, pane split centre blown out
• 5 Minutes Condition satisfactory internal pressure maintained

• Apply one coat of PL161 and allow to air dry for 15 minutes.
• Apply one coat of PL161 tinted with yellow tinter (this allows the operator to see the second coat).
• Air dry for 15 minutes, then stove for 30 minutes at 120-125ºC (do not allow temperature to go above this window as the intumescent action of the paint may start).
• Cool to room temperature and repeat until film thickness is achieved (250-375 Microns).
• Smooth surface by lightly abrading with 80 grade garnet paper.
• Apply a very thin coat of IP9138/R1 and allow to air dry for 15 minutes.

Health & Safety

Before use please request, our latest Health and Safety Data Sheet