In this section, "commingled goods" means goods that are physically united with other goods in such a manner that their identity is lost in a product or mass.
(b) [No security interest in commingled goods as such.]
A security interest does not exist in commingled goods as such. However, a security interest may attach to a product or mass that results when goods become commingled goods.
(c) [Attachment of security interest to product or mass.]
If collateral becomes commingled goods , a security interest attaches to the product or mass.
(d) [Perfection of security interest.]
If a security interest in collateral is perfected before the collateral becomes commingled goods , the security interest that attaches to the product or mass under subsection (c) is perfected.
(e) [Priority of security interest.]
Except as otherwise provided in subsection (f), the other provisions of this part determine the priority of a security interest that attaches to the product or mass under subsection (c).
(f) [Conflicting security interests in product or mass]
If more than one security interest attaches to the product or mass under subsection (c), the following rules determine priority:
(1) A security interest that is perfected under subsection (d) has priority over a security interest that is unperfected at the time the collateral becomes commingled goods .
(2) If more than one security interest is perfected under subsection (d), the security interests rank equally in proportion to the value of the collateral at the time it became commingled goods.