Paintable seal system

1. A paintable seal system, comprising:

a first panel of an automotive vehicle joined to a second panel of the automotive vehicle by a joint, wherein:

i) the joint is at least partially located within a ditch of the automotive vehicle; and

ii) the first panel is attached to the second panel along a length of the joint; and

a multilayer seal disposed over the joint, the multilayer seal including an adhesion portion and a barrier portion, wherein:

i) the barrier portion includes at least one layer;

ii) the adhesion portion softens and flows when heated to temperatures typically encountered in automotive vehicle priming and painting operations; and

iii) the multiplayer seal includes at least one of a polyester material in the barrier portion or a methacrylate in the adhesion portion

wherein the barrier portion is about 400 guage or about 600 guage in thickness.

2. A paintable seal system as in claim 1 wherein the barrier portion is layered over the adhesion portion.

3. A paintable seal system as in claim 1 wherein the at least one layer is formed of a plastic sheet material.

4. A paintable seal system as in claim 1 wherein the at least one layer is at least partially formed of polyester.

5. A paintable seal system as in claim 4 wherein the polyester of the at least one layer is polyethylene terephthalate.

6. A paintable seal system as in claim 1 wherein the barrier portion has a thickness of about 150 microns.

7. A paintable seal system as in claim 1 wherein the adhesion portion includes a curing agent.

8. A paintable seal system as in claim 1 wherein the adhesion portion includes an methacrylate copolymer.

9. A paintable seal system as in claim 1 wherein the adhesion portion includes an ethylene methacrylate.

10. A paintable seal system as in claim 1 wherein the adhesion portion includes a bisphenol.

11. A paintable seal system as in claim 1 further comprising a layer of primer and a urethane based coating.

12. A paintable seal system as in claim 1 wherein the adhesion portion includes an adhesion promoter.

13. A paintable seal system, comprising:

a first panel of an automotive vehicle joined to a second panel of the automotive vehicle by a lap joint, wherein:

i) the lap joint is at least partially located within a roof ditch that is at least partially defined by the first and second panel of the automotive vehicle; and

ii) the first panel is spot welded to the second panel along a length of the joint;

a multilayer seal disposed over the lap joint, the multilayer seal including an adhesion portion layered over the lap joint and a barrier portion layered over the lap joint, wherein:

i) the barrier portion includes multiple layers and at least one of the layers is at least partially formed of polyethylene terephthalate; and

ii) the adhesion portion softens and flows when heated to temperatures typically encountered in automotive vehicle priming and painting operations

wherein the multilayer seal including the barrier portion, the adhesion portion or both has a tensile strength of at least about 4500 KPa.

14. A paintable seal system as in claim 13 wherein the barrier portion is layered over the adhesion portion.

15. A paintable seal system as in claim 13 wherein the at least one layer is formed of a plastic sheet material.

16. A paintable seal system as in claim 13 wherein the barrier portion has a thickness of about 150 microns.

17. A paintable seal system as in claim 13 wherein the adhesion portion includes a curing agent.

18. A paintable seal system as in claim 13 wherein the adhesion portion includes a methacrylate copolymer.

19. A paintable seal system as in claim 13 wherein the adhesion portion includes an ethylene methacrylate.

20. A paintable seal system as in claim 13 wherein the adhesion portion includes a bisphenol.

21. A paintable seal system as in claim 13 further comprising a layer of primer and a urethane based coating.

22. A paintable seal system as in claim 13 wherein the adhesion portion includes an adhesion promoter.

23. A paintable seal system, comprising:

a first panel of an automotive vehicle joined to a second panel of the automotive vehicle by a lap joint, wherein:

i) the lap joint is at least partially located within a roof ditch that is at least partially defined by the first and second panel of the automotive vehicle; and

ii) the first panel is spot welded to the second panel along a length of the joint;

a multilayer seal disposed over the lap joint, the multilayer seal including an adhesion layer layered over the lap joint and a barrier layer layered over the lap joint, wherein:

i) the barrier layer includes multiple layers and at least one of the multiple layers is at least partially formed of polyethylene terephthalate;

ii) the adhesion layer softens and flows when heated to temperatures typically encountered in automotive vehicle priming and painting operations; and

iii) the adhesion layer includes an methacrylate copolymer, a bisphenol, a curing agent and an adhesion promoter; and

a layer of primer and a urethane based coating disposed over the multilayer seal.

24. A paintable seal system as in claim 23 wherein the barrier portion is about 400 guage or about 600 guage in thickness.

25. A paintable seal system as in claim 24 wherein the multilayer seal including the barrier portion, the adhesion portion or both has a tensile strength of at least about 4500 KPa.

26. A paintable seal system as in claim 23 wherein the multilayer seal including the barrier portion, the adhesion portion or both has a tensile strength of at least about 4500 KPa.