Hylomar Aerograde PL-32 is the original sealant developed by Rolls Royce and Hylomar to seal jet turbine engines. It is available in Light, Medium, and High Viscosities. Aerograde Ultra PL-32A is the new acetone version of Aerograde and has Rolls Royce approval.
 
 

Product			Aerograde	Aerograde	Aerograde	Aerograde	Advanced Formula
			Medium	Light	Ultra	Ultra Light
	Designation		PL32M	PL32L	PL32-A	PL32-A Light	AF
	Solvent		Methylene Chloride	Methylene Chloride	Acetone	Acetone	Solvent Free
	Available in US		limited	limited	Yes	limited	Yes
	Hazardous		Yes	Yes	No	No	No
	Flammable		No	No	Yes	Yes	No
Approvals
	Rolls Royce		MSRR9055	MSRR9055	MSRR9055	MSRR9055	MSRR1048
	Pratt Whitney		PWA 36000-3	PWA 36000-4	PWA 36000	PWA 36000	PWA 36000
	Honeywell		PCS-5620	PCS-5620	PCS-5620	PCS-5620
	Siemens		PSK034M100		PSK038T473
	OMAT		4/46	4/47	4/46a	4/47a
	Nato Stock No.		8030-99-220-3407	8030-99-220-2370