1
                                   EXHIBIT 5

                      [LETTERHEAD OF O'MELVENY & MYERS LLP]

                                      June
                                         1
                                      1998


Furon Company
29982 Ivy Glenn Drive
Laguna Niguel, California 92677

               Re:  Registration Statement on Form S-4

Ladies and Gentlemen:

        We have acted as counsel to Furon Company, a California corporation
("the Company"), in connection with the exchange of the Company's outstanding
8-1/8% Senior Subordinated Notes Due 2008 (the "Initial Notes") for newly issued
8-1/8% Senior Subordinated Notes Due 2008 (the "New Notes") which are being
registered under the Securities Act of 1933, as amended, by means of a
Registration Statement on Form S-4 (the "Registration Statement"), as filed with
the Securities and Exchange Commission (the "Commission").

        We have examined such documents and records, and other certificates,
opinions and instruments and have conducted such investigation as we have deemed
necessary as a basis for the opinion expressed below. As to factual matters
relevant to our opinion expressed below, we have relied, without independent
investigation, upon all of the foregoing, upon certificates of the officers of
the Company and of public officials, and upon public records. On the basis of 
the foregoing, and in reliance thereon, and subject to the limitations, 
qualifications and exceptions set forth below, we are of the opinion that:

        When executed and authenticated in accordance with their terms and the
terms of the Indenture, dated as of March 4, 1998, between the Company and The
Bank of New York ("the Indenture"), and delivered in exchange for the Initial
Notes pursuant to the Indenture and the exchange offer as described in the
Registration Statement, the New Notes will be valid and binding obligations of
the Company, entitled to the benefits of the Indenture and enforceable against
the Company in accordance with their terms, except (i) as may be limited by
bankruptcy, fraudulent conveyance, insolvency, reorganization, moratorium or
other similar laws affecting the rights of creditors generally, (ii) for the
effect of general principles of equity, including, without limitation, concepts
of materiality, reasonableness, good faith and fair dealing and the possible
unavailability of specific performance or injunctive relief regardless of
whether enforcement is brought in a proceeding at law or in equity and (iii) the
waiver as to stay, extension or usury laws may not be enforceable.


   2

        Our opinion with respect to the validity, binding effect and
enforceability of the New Notes is subject to (a) the unenforceability under
certain circumstances of provisions to the effect that rights or remedies are
not exclusive, that rights or remedies may be exercised in addition to or with
any other right or remedy, that election of a particular remedy or remedies does
not preclude recourse to one or more other remedies, or that failure to exercise
or delay in exercising rights or remedies will not operate as a waiver of any
such right or remedy, (b) the unenforceability under certain circumstances of
provisions expressly or by implication waiving broadly or vaguely stated rights,
unknown future rights, defenses to obligations, rights granted by law or
objections to the bringing of an action or proceeding in a particular
jurisdiction, where such waivers are against public policy or prohibited by law,
and (c) the unenforceability under certain circumstances of any provisions which
impose penalties or forfeitures.

        We express no opinion regarding the statutes, administrative decisions,
rules, regulations or requirements of any county, municipality, subdivision or
local authority of any jurisdiction. We express no opinion regarding any
bankruptcy, fraudulent conveyance, insolvency, reorganization, moratorium or
other similar laws affecting the rights of creditors generally.

        We consent to the filing of this opinion as an exhibit to the
Registration Statement on Form S-4 and to the use of our name under the caption
"Legal Matters" in the prospectus.


                                            Respectfully submitted,

                                            /s/ O'MELVENY & MYERS LLP

                                            O'Melveny & Myers LLP