METHOD FOR INTRODUCING CATALYST INTO ATOMIZED COATING COMPOSITION

1 . A method for producing a layer of a coating composition on a substrate, said method comprising the steps of:

(A) conveying a first coating component of said coating composition through a first inlet of a spray gun to an orifice of said spray gun to produce a stream of atomized said first coating component;

(B) siphoning a second coating component of said coating composition into the stream of atomized said first coating component to form a coating mixture, wherein said second coating component is siphoned by said stream of atomized said first coating component from at least one delivery outlet coupled to a storage container containing said second coating component, said delivery outlet being transversely positioned at said orifice; and

(C) applying the coating mixture on the substrate to form the layer of said coating composition thereon.

2 . The method of claim 1 , wherein the stream of atomized said first coating component is produced by the spray gun using a pressurized carrier selected from compressed air, compressed gas, compressed gas mixture, or a combination thereof.

3 . The method of claim 1 , wherein said second coating component is at atmosphere pressure.

4 . The method of claim 1 , wherein said first and said second coating components are mixed at a pre-determined mixing ratio to form said coating mixture, wherein said pre-determined mixing ratio is determined by modulating size of said at least one delivery outlet, providing a flow rate controller functionally coupled to said at least one delivery outlet, or a combination thereof.

5 . The method of claim 1 , 2 , 3 , or 4 further comprising the step of curing the layer on the substrate to form a coating thereon.

6 . The method of claim 5 , wherein the coating is a primer, a basecoat, a pigmented basecoat, or a clearcoat.

7 . The method of claim 5 , wherein the second coating component interacts with the first coating component to form said coating on said substrate and wherein said second coating component is selected from a catalyst, an initiator, an activator, a curing agent, or a combination thereof.

8 . The method of claim 5 , wherein said substrate is a vehicle, vehicle body, or vehicle body parts.

9 . A coating layer produced by the method of claim 5 .

10 . A coated substrate produced by the method of claim 5 .

11 . The method of claim 1 further comprising the step of siphoning a subsequent coating component into the coating mixture, wherein the subsequent coating component is siphoned by said stream of atomized said first coating component.

12 . The method of claim 11 , wherein said subsequent coating component is siphoned from said at least one delivery outlet, wherein said subsequent coating component and said second coating component are supplied from separate storage containers and mixed prior to reaching said delivery outlets.

13 . The method of claim 11 , wherein said subsequent coating component is siphoned from at least one subsequent outlet coupled to a storage container containing the subsequent coating component, said subsequent delivery outlet being transversely positioned at said orifice.

14 . The method of claim 11 , wherein said subsequent coating component is at atmosphere pressure.

15 . The method of claim 11 , 12 , 13 , or 14 wherein said first, said second, and said subsequent coating components interact to form a coating layer on said substrate.

16 . The method of claim 15 , wherein said substrate is a vehicle, vehicle body, or vehicle body parts.

17 . A coating layer produced by the method of claim 15 .

18 . A coated substrate produced by the method of claim 15 .

19 . A coated substrate having at least one coating layer produced by the method of claim 15 .