[Comment: For dates and availability of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see paragraph (JJ) of rule 3745-21-01 of the Administrative Code titled to "referenced materials."]
The owner or operator of a boat manufacturing facility that manufactures solely fiberglass parts of boats such as hatches, seats, lockers, or boat trailers is not considered a boat manufacturing facility for the purpose of this rule.
The following operations or materials are exempt from the monomer and nonmonomer VOC requirements of paragraph (D) of this rule:
Any owner or operator of a facility claiming an exemption pursuant to this subparagraph shall record and maintain records, as applicable, in accordance with paragraph (M)(2) of this rule.
The definitions applicable to this rule are contained in paragraphs (A), (B), and (HH) of rule 3745-21-01 of the Administrative Code.
The owner or operator of a boat manufacturing facility shall not apply any resin or gel coat that exceeds a non-monomer content of 5.0 per cent, by weight, of resin or gel coat.
Monomer VOC limit = [92(MR) + 318(MPG) + 582(MCG) + 108(MTR) + 428(MTG)]
Where:
Monomer VOC limit = total allowable monomer VOC that can be emitted from the molding operations included in the average, pounds per twelvemonth period.
MR = mass of production resin used in the past twelve months, excluding any materials that are exempt pursuant to paragraph (B) of this rule, in tons.
MPG = mass of pigmented gel coat used in the past twelve months, excluding any materials that are exempt pursuant to paragraph (B) of this rule, in tons.
MCG = mass of clear gel coat used in the past twelve months, excluding any materials that are exempt pursuant to paragraph (B) of this rule, in tons.
MTR = mass of tooling resin used in the past twelve months, excluding any materials that are exempt pursuant to paragraph (B) of this rule, in tons.
MTG = mass of tooling gel coat used in the past twelve months, excluding any materials that are exempt pursuant to paragraph (B) of this rule, in tons.
The numerical coefficients associated with each term on the right hand side of the equation are the allowable monomer VOC emission rate for that particular material in units of pounds per ton of material used.
All resin and gel coat mixing containers with a capacity equal to or greater than 55.0 gallons, including those used for on-site mixing of putties and polyputties, have a cover with no visible gaps in place at all times. This work practice standard does not apply when material is being manually added to or removed from a container, or when mixing or pumping equipment is being placed in or removed from a container.
Compliance with the non-monomer VOC content (weight per cent) for resin and gel coat materials shall be determined by using test methods and procedures specified in paragraph (B) of rule 3745-21-10 of the Administrative Code.
Compliance with the monomer VOC emission limitation for resin and gel coat operations shall be determined using one of the following options:
Table 1 Alternative VOC content requirements for molding resin and gel coat operations
Operation | Application Method | Weighted-Average Monomer VOC Content (weight per cent) |
Production resin | Atomized | 28.0 |
Production resin | Nonatomized | 35.0 |
Pigmented gel coat | Any method | 33.0 |
Clear gel coat | Any method | 48.0 |
Tooling resin | Atomized | 30.0 |
Tooling resin | Nonatomized | 39.0 |
Tooling gel coat | Any method | 40.0 |
Where:
Mi = mass of molding resin or gel coat "i" used in the past twelve months in an operation, tons.
VOCi = Monomer VOC content, by weight percent, of molding resin or gel coat "i" used in the past twelve months in an operation.
n = number of different molding resins or gel coats used in the past twelve months in an operation.
If the weighted-average VOC content for all materials of a certain type and specific application method does not exceed the applicable VOC content limitation specified in table 1 of this rule, then the owner or operator is in compliance with the emission limitation specified in paragraph (D)(3) of this rule.
Monomer VOC emissions = (PVR)(MR) + (PVPG)(MPG) + (PVCG) (MCG) + (PVTR)(MTR) + (PVTG)(MTG)
Where:
Monomer VOC emissions = Monomer VOC emissions calculated using the monomer VOC emission equations for each operation included in the average, in pounds.
PVR = Weighted-average monomer VOC emission rate for production resin used in the past twelve months, in pounds per ton.
MR = Mass of production resin used in the past twelve months, in tons.
PVPG = Weighted-average monomer VOC emission rate for pigmented gel coat used in the past twelve months, in pounds per ton.
MPG = Mass of pigmented gel coat used in the past twelve months, in tons.
PVCG = Weighted-average monomer VOC emission rate for clear gel coat used in the past twelve months, in pounds per ton.
MCG = Mass of clear gel coat used in the past twelve months, in pounds.
PVTR = Weighted-average monomer VOC emission rate for tooling resin used in the past twelve months, in pounds per ton.
MTR = Mass of tooling resin used in the past twelve months, in tons.
PVTG = Weighted-average monomer VOC emission rate for tooling gel coat used in the past twelve months, in pounds per ton.
MTG = Mass of tooling gel coat used in the past twelve months, in tons.
Where:
PVOP = weighted-average monomer VOC emission rate for each molding operation (PVR, PVPG, PVCG, PVTR, and PVTG) included in the average, pounds of monomer VOC per ton of material applied.
Mi = mass of resin or gel coat "i" used within an operation in the past twelve months, in tons.
n = number of different molding resins and gel coats used within an operation in the past twelve months.
PVi = the monomer VOC emission rate for resin or gel coat "i" used within an operation in the past twelve months, pounds of monomer VOC per tons of material applied. PVi shall equal PVF as calculated under paragraph (H)(3) of this rule when using filled resins.
Table 2 Monomer VOC emission rate formulas for molding operations.
Operation | Application Method | Formula to calculate the monomer VOC emission rate. |
Production resin, tooling resin | Atomized | 0.014 x (Resin VOC per cent)2.425 |
Atomized, plus vacuum bagging with roll-out | 0.01185 x (Resin VOC per cent)2.425 | |
Atomized, plus vacuum bagging without roll-out | 0.00945 x (Resin VOC per cent)2.425 | |
Nonatomized | 0.014 x (Resin VOC per cent)2.275 | |
Nonatomized, plus vacuum bagging with roll-out | 0.0110 x (Resin VOC per cent)2.275 | |
Nonatomized, plus vacuum bagging without roll-out | 0.0076 x (Resin VOC per cent)2.275 | |
Pigmented gel coat, clear gel coat, tooling gel coat | All methods | 0.445 x (Gel coat VOC per cent)1.675 |
Equations in table 2 of this rule calculate the monomer VOC emission rate value in kilograms of VOC per megagrams of resin or gel coat applied. To convert the monomer VOC emission rate to pounds per ton multiply the product of the equation by two. The equations for vacuum bagging with roll-out are applicable when a facility rolls out the applied resin and fabric prior to applying the vacuum bagging materials. The equations for vacuum bagging without roll-out are applicable when a facility applies the vacuum bagging materials immediately after resin application without rolling out the resin and fabric. VOC per cent equals VOC content as supplied, expressed as a weight-per cent value between zero and one hundred per cent.
PVF = (PVU)(100 - per cent filler) / 100
Where:
PVF = The as-applied monomer VOC emission rate for a filled production resin or tooling resin, pounds of monomer VOC per ton of filled material.
PVu = The monomer VOC emission rate for the neat (unfilled) resin, before filler is added, as calculated using the formulas in table 2 of this rule.
Per cent filler = The weight-per cent of filler in the as-applied filled resin system.
The VOC composite partial vapor pressure is calculated as follows:
Where:
Wi= Weight of the "i"th VOC compound, in grams.
Ww = Weight of water, in grams.
We = Weight of exempt compound, in grams.
MWi = Molecular weight of the "i"th VOC compound, in grams per gram-mole.
MWw = Molecular weight of water, in grams per gram-mole.
MWe = Molecular weight of the "e"th exempt compound, in grams per gram-mole.
PPc = VOC composite partial pressure at twenty degrees Celsius (sixty-eight degrees Fahrenheit), in mmHg.
VPi = Vapor pressure of the "i"th VOC compound at twenty degrees Celsius (sixty-eight degrees Fahrenheit), in mmHg.
Provided total VOC emissions are less than 15.0 pounds per day, the owner or operator may elect to maintain the following records in lieu of the records required under paragraph (M)(1)(a) of this rule:
Ohio Admin. Code 3745-21-27
Five Year Review (FYR) Dates: 11/29/2021 and 11/29/2026
Promulgated Under: 119.03
Statutory Authority: 3704.03(E)
Rule Amplifies: 3704.03(A), 3704.03(E)
Prior Effective Dates: 05/12/2011, 10/15/2015