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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
755003	Material Sciences Corp	MASC	Coating, Engraving & Allied Services (3470)	952673173

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1134621	Rbf Capital, Llc	100 Drakes Landing Road Suite 300 Greenbrae CA 94904		No	No	No	Yes
1484502	B. Richard Fullerton	100 Drakes Landing Road Suite 300 Greenbrae CA 94904		No	No	No	Yes

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2010-04-21	430,187	$2.80	2,236,486	No	4	P	Indirect	See footnotes

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Indirect	See footnotes

Footnotes

The reporting persons are: (i) RBF Capital, LLC ("RBF"); and (ii) Richard B. Fullerton, RBF's managing member.
The securities reported on this Form 4 are beneficially held by Fullerton Capital Partners, L.P. ("FCP") and other investment limited partnerships for which RBF serves as the general partner and/or investment manager (the "Funds"). Other than FCP, none of the Funds is itself the beneficial owner of more than 10% of the issuer's common stock. As a greater than 10% beneficial owner, FCP is separately reporting its holdings on a Form 3.
RBF and Mr. Fullerton may be deemed to beneficially own the securities owned by FCP and the Funds insofar as they may be deemed to have the power to direct the voting or disposition of such securities. Each of RBF, Mr. Fullerton, FCP and the Funds disclaims beneficial ownership in these securities, however, except to the extent of their respective pecuniary interests therein.