
Fuzzy-Wuzzy |

However, for weapons,
These silver, alchemical powders have a gritty consistency, appearing at first glance to be simple metal shavings. When poured on a weapon and placed over a hot flame for a full round, however, they melt and form a temporary coating on the weapon. The blanching gives the weapon the ability to bypass one kind of material-based damage reduction, such as adamantine, cold iron, or silver. The blanching remains effective until you make a successful attack with the weapon. Each dose of blanching can coat one weapon or up to 10 pieces of ammunition. Only one kind of weapon blanch can be on a weapon at one time, though a weapon made of one special material (such as adamantine) can have a different material blanch (such as silver), and counts as both materials for the first successful hit.
So you can get the effect you want on a one-use-at-a-time basis.

Torbyne |
You can't, but it always struck me as weird. Damascus steel is not ridiculously hard to make, and a weapon that can get through the defences of both (lesser) demons and devils seems like it would be in high demand.
Related, can you make shield spikes of a different material than the shield?
i would say yes to shields and spikes of different material, i hope you arent putting wooden spikes on that wooden shield, but you only count the material the spikes are made out of when determining special effects.

Bwang |

Not in a game i play in, but:
The spikes on a shield or armor can be of multiple materials, but cost as much as ALL included, but suffer a -1 per die in each extra material. Spikes of silvered steel or a similar coating do not count as a material, but can be lost on a CH. Such spikes lose the coating even if repaired.
They have weapon rules that are similar.

Dragonchess Player |

Also, for weapons, a +3 enhancement bonus allows a weapon to penetrate DR as if it were cold iron and/or silver. So a +3 adamantine weapon would penetrate all three common material DRs.

dragonhunterq |